diff --git a/modules/abstract-eth/test/unit/token.ts b/modules/abstract-eth/test/unit/token.ts
index ddab7fdf74..16eeb36894 100644
--- a/modules/abstract-eth/test/unit/token.ts
+++ b/modules/abstract-eth/test/unit/token.ts
@@ -1,6 +1,10 @@
-import { TestBitGo, TestBitGoAPI } from '@bitgo/sdk-test';
+import * as sdkTest from '@bitgo/sdk-test';
+import type { TestBitGoAPI } from '@bitgo/sdk-test';
+
 import { BitGoAPI } from '@bitgo/sdk-api';
 
+const { TestBitGo } = sdkTest;
+
 export function runTokenTestInitialization(
   currentCoinToken,
   coinName: string,
diff --git a/modules/account-lib/test/unit/fixtures.ts b/modules/account-lib/test/unit/fixtures.ts
index 7c9c999f0b..bf3093b41c 100644
--- a/modules/account-lib/test/unit/fixtures.ts
+++ b/modules/account-lib/test/unit/fixtures.ts
@@ -1,26 +1,22 @@
 import { BaseCoin } from '@bitgo/statics';
-import {
-  BaseMessage,
-  BaseMessageBuilder,
-  BaseMessageBuilderFactory,
-  IMessage,
-  IMessageBuilder,
-  MessageOptions,
-  MessageStandardType,
-} from '@bitgo/sdk-core';
+import * as sdkCore from '@bitgo/sdk-core';
+import type { IMessage, IMessageBuilder, MessageOptions } from '@bitgo/sdk-core';
+const { BaseMessage, BaseMessageBuilder, BaseMessageBuilderFactory, MessageStandardType } = sdkCore;
+
+type MessageStandardTypeValue = (typeof MessageStandardType)[keyof typeof MessageStandardType];
 
 export class MockMessageBuilderFactory extends BaseMessageBuilderFactory {
   constructor(coinConfig: Readonly<BaseCoin>) {
     super(coinConfig);
   }
 
-  getMessageBuilder(type: MessageStandardType): IMessageBuilder {
+  getMessageBuilder(type: MessageStandardTypeValue): IMessageBuilder {
     return new MockMessageBuilder(this.coinConfig, type);
   }
 }
 
 export class MockMessageBuilder extends BaseMessageBuilder {
-  constructor(coinConfig: Readonly<BaseCoin>, type: MessageStandardType = MessageStandardType.UNKNOWN) {
+  constructor(coinConfig: Readonly<BaseCoin>, type: MessageStandardTypeValue = MessageStandardType.UNKNOWN) {
     super(coinConfig, type);
   }
 
diff --git a/modules/bitgo/test/ecdh.ts b/modules/bitgo/test/ecdh.ts
index 295dd6be15..b1fdbc80de 100644
--- a/modules/bitgo/test/ecdh.ts
+++ b/modules/bitgo/test/ecdh.ts
@@ -8,7 +8,7 @@ import * as utxolib from '@bitgo/utxo-lib';
 
 import { getSharedSecret, signMessageWithDerivedEcdhKey, verifyEcdhSignature } from '@bitgo/sdk-core';
 import { TestBitGo } from '@bitgo/sdk-test';
-import * as assert from 'assert';
+import assert from 'assert';
 import { BitGo } from '../src/bitgo';
 
 describe('ECDH utils', () => {
diff --git a/modules/bitgo/test/integration/wallets.ts b/modules/bitgo/test/integration/wallets.ts
index a0ad95aca4..adc725b4fa 100644
--- a/modules/bitgo/test/integration/wallets.ts
+++ b/modules/bitgo/test/integration/wallets.ts
@@ -14,7 +14,7 @@ const TestBitGo = require('../lib/test_bitgo');
 import * as utxolib from '@bitgo/utxo-lib';
 import { getAddressP2PKH, getNetwork } from '../../src/bitcoin';
 import { common } from '@bitgo/sdk-core';
-import * as nock from 'nock';
+import nock from 'nock';
 
 const TEST_WALLET_LABEL = 'wallet management test';
 
diff --git a/modules/bitgo/test/unit/bip32path.ts b/modules/bitgo/test/unit/bip32path.ts
index 87cd3657a3..e433b65c2c 100644
--- a/modules/bitgo/test/unit/bip32path.ts
+++ b/modules/bitgo/test/unit/bip32path.ts
@@ -2,7 +2,7 @@
  * @prettier
  */
 import 'should';
-import { bip32, BIP32Interface } from '@bitgo/utxo-lib';
+import { bip32, type BIP32Interface } from '@bitgo/utxo-lib';
 import { sanitizeLegacyPath, bitcoin } from '@bitgo/sdk-core';
 import { getSeed } from '@bitgo/sdk-test';
 const { HDNode, hdPath } = bitcoin;
diff --git a/modules/bitgo/test/unit/bitgo.ts b/modules/bitgo/test/unit/bitgo.ts
index 02c44b9230..a67ee4d7e2 100644
--- a/modules/bitgo/test/unit/bitgo.ts
+++ b/modules/bitgo/test/unit/bitgo.ts
@@ -3,9 +3,9 @@
 //
 
 import * as crypto from 'crypto';
-import * as nock from 'nock';
+import nock from 'nock';
 import * as should from 'should';
-import assert = require('assert');
+import assert from 'assert';
 
 import { common, generateGPGKeyPair } from '@bitgo/sdk-core';
 import { bip32, ECPair } from '@bitgo/utxo-lib';
diff --git a/modules/bitgo/test/unit/decryptKeychain.ts b/modules/bitgo/test/unit/decryptKeychain.ts
index 976ae2b632..f00e4375fd 100644
--- a/modules/bitgo/test/unit/decryptKeychain.ts
+++ b/modules/bitgo/test/unit/decryptKeychain.ts
@@ -1,5 +1,5 @@
 import 'should';
-import { decryptKeychainPrivateKey, OptionalKeychainEncryptedKey } from '@bitgo/sdk-core';
+import { decryptKeychainPrivateKey, type OptionalKeychainEncryptedKey } from '@bitgo/sdk-core';
 import { BitGoAPI } from '@bitgo/sdk-api';
 
 describe('decryptKeychainPrivateKey', () => {
diff --git a/modules/bitgo/test/unit/keychains.ts b/modules/bitgo/test/unit/keychains.ts
index 9f39f423a1..11fb77b859 100644
--- a/modules/bitgo/test/unit/keychains.ts
+++ b/modules/bitgo/test/unit/keychains.ts
@@ -3,7 +3,7 @@
 //
 
 import * as _ from 'lodash';
-import * as nock from 'nock';
+import nock from 'nock';
 import 'should';
 
 import { common } from '@bitgo/sdk-core';
diff --git a/modules/bitgo/test/v2/integration/coins/eth.ts b/modules/bitgo/test/v2/integration/coins/eth.ts
index 93d73665da..d76bf9da29 100644
--- a/modules/bitgo/test/v2/integration/coins/eth.ts
+++ b/modules/bitgo/test/v2/integration/coins/eth.ts
@@ -2,7 +2,7 @@ import * as should from 'should';
 import 'should-http';
 
 import { TestBitGo } from '../../../lib/test_bitgo';
-import * as nock from 'nock';
+import nock from 'nock';
 nock.restore();
 
 describe('ETH:', function () {
diff --git a/modules/bitgo/test/v2/integration/coins/xlm.ts b/modules/bitgo/test/v2/integration/coins/xlm.ts
index c7a3d45426..f10f429a87 100644
--- a/modules/bitgo/test/v2/integration/coins/xlm.ts
+++ b/modules/bitgo/test/v2/integration/coins/xlm.ts
@@ -4,7 +4,7 @@ import { BaseCoin } from '../../../../src/v2';
 
 import { TestBitGo } from '../../../lib/test_bitgo';
 
-import * as nock from 'nock';
+import nock from 'nock';
 
 describe('XLM:', function () {
   let bitgo: typeof TestBitGo;
diff --git a/modules/bitgo/test/v2/integration/wallet.ts b/modules/bitgo/test/v2/integration/wallet.ts
index 0902eda89f..7f360cac13 100644
--- a/modules/bitgo/test/v2/integration/wallet.ts
+++ b/modules/bitgo/test/v2/integration/wallet.ts
@@ -4,7 +4,7 @@
 
 import * as should from 'should';
 import * as _ from 'lodash';
-import * as nock from 'nock';
+import nock from 'nock';
 
 import { TestBitGo } from '../../lib/test_bitgo';
 
diff --git a/modules/bitgo/test/v2/lib/recovery-nocks.ts b/modules/bitgo/test/v2/lib/recovery-nocks.ts
index 10c00c9f00..6d9c46ddb9 100644
--- a/modules/bitgo/test/v2/lib/recovery-nocks.ts
+++ b/modules/bitgo/test/v2/lib/recovery-nocks.ts
@@ -1,7 +1,7 @@
 /**
  * @prettier
  */
-import * as nock from 'nock';
+import nock from 'nock';
 import { Environments } from '@bitgo/sdk-core';
 
 module.exports.nockXrpRecovery = function nockXrpRecovery() {
diff --git a/modules/bitgo/test/v2/unit/PrebuildAndSign.ts b/modules/bitgo/test/v2/unit/PrebuildAndSign.ts
index f617c4e4fb..73181f0116 100644
--- a/modules/bitgo/test/v2/unit/PrebuildAndSign.ts
+++ b/modules/bitgo/test/v2/unit/PrebuildAndSign.ts
@@ -1,5 +1,5 @@
 import * as sinon from 'sinon';
-import * as nock from 'nock';
+import nock from 'nock';
 
 import { Environments, Wallet } from '@bitgo/sdk-core';
 import { TestableBG, TestBitGo } from '@bitgo/sdk-test';
diff --git a/modules/bitgo/test/v2/unit/accountConsolidations.ts b/modules/bitgo/test/v2/unit/accountConsolidations.ts
index 1c85ba3303..6606fe66d8 100644
--- a/modules/bitgo/test/v2/unit/accountConsolidations.ts
+++ b/modules/bitgo/test/v2/unit/accountConsolidations.ts
@@ -6,7 +6,7 @@ import * as sinon from 'sinon';
 require('should-sinon');
 
 import '../lib/asserts';
-import * as nock from 'nock';
+import nock from 'nock';
 
 import { common, Wallet } from '@bitgo/sdk-core';
 
diff --git a/modules/bitgo/test/v2/unit/ams/ams.ts b/modules/bitgo/test/v2/unit/ams/ams.ts
index 62858e96ce..371803288c 100644
--- a/modules/bitgo/test/v2/unit/ams/ams.ts
+++ b/modules/bitgo/test/v2/unit/ams/ams.ts
@@ -1,5 +1,5 @@
 import * as should from 'should';
-import * as nock from 'nock';
+import nock from 'nock';
 
 import { Environments } from '@bitgo/sdk-core';
 import { TestBitGo } from '@bitgo/sdk-test';
diff --git a/modules/bitgo/test/v2/unit/apiNocks.ts b/modules/bitgo/test/v2/unit/apiNocks.ts
index 185f019c95..7dc3952170 100644
--- a/modules/bitgo/test/v2/unit/apiNocks.ts
+++ b/modules/bitgo/test/v2/unit/apiNocks.ts
@@ -1,4 +1,4 @@
-import * as nock from 'nock';
+import nock from 'nock';
 
 export async function nockGetSigningKey(params: {
   userId: string;
diff --git a/modules/bitgo/test/v2/unit/auth.ts b/modules/bitgo/test/v2/unit/auth.ts
index b9641e4521..c510fc83b2 100644
--- a/modules/bitgo/test/v2/unit/auth.ts
+++ b/modules/bitgo/test/v2/unit/auth.ts
@@ -1,4 +1,4 @@
-import * as nock from 'nock';
+import nock from 'nock';
 import 'should';
 import * as sinon from 'sinon';
 
diff --git a/modules/bitgo/test/v2/unit/baseCoin.ts b/modules/bitgo/test/v2/unit/baseCoin.ts
index 41af4d1921..cb409f6995 100644
--- a/modules/bitgo/test/v2/unit/baseCoin.ts
+++ b/modules/bitgo/test/v2/unit/baseCoin.ts
@@ -3,7 +3,7 @@
 //
 
 import 'should';
-import * as nock from 'nock';
+import nock from 'nock';
 
 import { TestBitGo } from '@bitgo/sdk-test';
 import { BitGo } from '../../../src/bitgo';
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/address.ts b/modules/bitgo/test/v2/unit/coins/utxo/address.ts
index 0dfbd58ab2..63f4da5e23 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/address.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/address.ts
@@ -2,7 +2,7 @@
  * @prettier
  */
 import 'should';
-import * as assert from 'assert';
+import assert from 'assert';
 import * as utxolib from '@bitgo/utxo-lib';
 const { chainCodes } = utxolib.bitgo;
 
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/coins.ts b/modules/bitgo/test/v2/unit/coins/utxo/coins.ts
index 349f028b47..549f220b44 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/coins.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/coins.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import * as utxolib from '@bitgo/utxo-lib';
 
 import { getUtxoCoinForNetwork, utxoCoins } from './util';
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/keySignatures.ts b/modules/bitgo/test/v2/unit/coins/utxo/keySignatures.ts
index 4c03cc2dd6..75ad8973c9 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/keySignatures.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/keySignatures.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { AbstractUtxoCoin } from '@bitgo/abstract-utxo';
 import { Keychain } from '@bitgo/sdk-core';
 
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/keychains.ts b/modules/bitgo/test/v2/unit/coins/utxo/keychains.ts
index 8908534c0b..44dda92fdb 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/keychains.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/keychains.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import 'should';
 import { AbstractUtxoCoin } from '@bitgo/abstract-utxo';
 import { utxoCoins } from './util';
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/prebuildAndSign.ts b/modules/bitgo/test/v2/unit/coins/utxo/prebuildAndSign.ts
index eb8057b673..b1cb93d8d1 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/prebuildAndSign.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/prebuildAndSign.ts
@@ -1,11 +1,11 @@
 /**
  * @prettier
  */
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { AbstractUtxoCoin, getReplayProtectionAddresses } from '@bitgo/abstract-utxo';
 import * as utxolib from '@bitgo/utxo-lib';
-import * as nock from 'nock';
+import nock from 'nock';
 
 import { encryptKeychain, getDefaultWalletKeys, getUtxoWallet, keychainsBase58, utxoCoins } from './util';
 import { common, HalfSignedUtxoTransaction, Wallet } from '@bitgo/sdk-core';
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/recovery/backupKeyRecovery.ts b/modules/bitgo/test/v2/unit/coins/utxo/recovery/backupKeyRecovery.ts
index 9a8d48c625..3b229b00d1 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/recovery/backupKeyRecovery.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/recovery/backupKeyRecovery.ts
@@ -4,7 +4,7 @@
 import 'should';
 import * as mocha from 'mocha';
 import * as sinon from 'sinon';
-import * as nock from 'nock';
+import nock from 'nock';
 import { BIP32Interface } from '@bitgo/utxo-lib';
 
 import * as utxolib from '@bitgo/utxo-lib';
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/recovery/crossChainRecovery.ts b/modules/bitgo/test/v2/unit/coins/utxo/recovery/crossChainRecovery.ts
index cc516d23be..29a3e669ca 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/recovery/crossChainRecovery.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/recovery/crossChainRecovery.ts
@@ -1,9 +1,9 @@
 /**
  * @prettier
  */
-import * as assert from 'assert';
+import assert from 'assert';
 import * as should from 'should';
-import * as nock from 'nock';
+import nock from 'nock';
 import * as utxolib from '@bitgo/utxo-lib';
 import { Triple } from '@bitgo/sdk-core';
 import {
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/recovery/mock.ts b/modules/bitgo/test/v2/unit/coins/utxo/recovery/mock.ts
index ccb7fe771e..4f5a4ca728 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/recovery/mock.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/recovery/mock.ts
@@ -2,8 +2,8 @@
  * @prettier
  */
 import { bitgo } from '@bitgo/utxo-lib';
-import { AddressInfo, TransactionIO } from '@bitgo/blockapis';
-import { AbstractUtxoCoin, RecoveryProvider } from '@bitgo/abstract-utxo';
+import type { AddressInfo, TransactionIO } from '@bitgo/blockapis';
+import type { AbstractUtxoCoin, RecoveryProvider } from '@bitgo/abstract-utxo';
 import * as utxolib from '@bitgo/utxo-lib';
 import { Bch } from '@bitgo/sdk-coin-bch';
 import { Bsv } from '@bitgo/sdk-coin-bsv';
@@ -52,13 +52,15 @@ export class MockRecoveryProvider implements RecoveryProvider {
   }
 }
 export class MockCrossChainRecoveryProvider<TNumber extends number | bigint> implements RecoveryProvider {
+  public coin: AbstractUtxoCoin;
+  public unspents: Unspent<TNumber>[];
+  public tx: utxolib.bitgo.UtxoTransaction<TNumber>;
   private addressVersion: 'cashaddr' | 'base58';
   private addressFormat: utxolib.addressFormat.AddressFormat;
-  constructor(
-    public coin: AbstractUtxoCoin,
-    public unspents: Unspent<TNumber>[],
-    public tx: utxolib.bitgo.UtxoTransaction<TNumber>
-  ) {
+  constructor(coin: AbstractUtxoCoin, unspents: Unspent<TNumber>[], tx: utxolib.bitgo.UtxoTransaction<TNumber>) {
+    this.coin = coin;
+    this.unspents = unspents;
+    this.tx = tx;
     // this is how blockchair will return the data, as a cashaddr for BCH like coins
     // BSV supports cashaddr, but at the time of writing the SDK does not support cashaddr for bsv
     this.addressFormat = this.coin instanceof Bch && !(this.coin instanceof Bsv) ? 'cashaddr' : 'default';
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/transaction.ts b/modules/bitgo/test/v2/unit/coins/utxo/transaction.ts
index ac0c97dcc9..a04cf1e53c 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/transaction.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/transaction.ts
@@ -3,9 +3,9 @@
  */
 import 'mocha';
 import * as _ from 'lodash';
-import * as assert from 'assert';
+import assert from 'assert';
 import * as utxolib from '@bitgo/utxo-lib';
-import * as nock from 'nock';
+import nock from 'nock';
 import { BIP32Interface, bitgo, testutil } from '@bitgo/utxo-lib';
 
 import { AbstractUtxoCoin, getReplayProtectionAddresses } from '@bitgo/abstract-utxo';
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/util/keychains.ts b/modules/bitgo/test/v2/unit/coins/utxo/util/keychains.ts
index b40c6008bc..9e34a10139 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/util/keychains.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/util/keychains.ts
@@ -1,10 +1,10 @@
 /**
  * @prettier
  */
-import { Triple } from '@bitgo/sdk-core';
+import type { Triple } from '@bitgo/sdk-core';
 import { encrypt } from '@bitgo/sdk-api';
 import { getSeed } from '@bitgo/sdk-test';
-import { bip32, BIP32Interface, bitgo } from '@bitgo/utxo-lib';
+import { bip32, type BIP32Interface, bitgo } from '@bitgo/utxo-lib';
 
 type RootWalletKeys = bitgo.RootWalletKeys;
 
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/util/nockBitGo.ts b/modules/bitgo/test/v2/unit/coins/utxo/util/nockBitGo.ts
index 28b99cf29d..4f166ee233 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/util/nockBitGo.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/util/nockBitGo.ts
@@ -1,4 +1,4 @@
-import * as nock from 'nock';
+import nock from 'nock';
 import { Environment, Environments } from '@bitgo/sdk-core';
 import { defaultBitGo } from './utxoCoins';
 
diff --git a/modules/bitgo/test/v2/unit/coins/utxo/util/nockIndexerAPI.ts b/modules/bitgo/test/v2/unit/coins/utxo/util/nockIndexerAPI.ts
index eeb74448c1..404e3670d2 100644
--- a/modules/bitgo/test/v2/unit/coins/utxo/util/nockIndexerAPI.ts
+++ b/modules/bitgo/test/v2/unit/coins/utxo/util/nockIndexerAPI.ts
@@ -1,7 +1,7 @@
 /**
  * @prettier
  */
-import * as nock from 'nock';
+import nock from 'nock';
 import * as utxolib from '@bitgo/utxo-lib';
 import { AbstractUtxoCoin } from '@bitgo/abstract-utxo';
 import { nockBitGo } from './nockBitGo';
diff --git a/modules/bitgo/test/v2/unit/enterprise.ts b/modules/bitgo/test/v2/unit/enterprise.ts
index 9a54851bb3..2c7486ce78 100644
--- a/modules/bitgo/test/v2/unit/enterprise.ts
+++ b/modules/bitgo/test/v2/unit/enterprise.ts
@@ -2,7 +2,7 @@
 // Tests for enterprises
 //
 
-import * as nock from 'nock';
+import nock from 'nock';
 import * as sinon from 'sinon';
 import { common, ECDSAUtils, Enterprise } from '@bitgo/sdk-core';
 
diff --git a/modules/bitgo/test/v2/unit/errors.ts b/modules/bitgo/test/v2/unit/errors.ts
index 5ba25c4099..1351a92c1c 100644
--- a/modules/bitgo/test/v2/unit/errors.ts
+++ b/modules/bitgo/test/v2/unit/errors.ts
@@ -1,10 +1,11 @@
 import 'should';
-const assert = require('assert');
+import assert from 'assert';
 import { BitGoJsError, NodeEnvironmentError } from '@bitgo/sdk-core';
 
 describe('Error handling', () => {
   it('should capture stack trace', function namedFunc() {
     const { stack } = new BitGoJsError();
+    assert(stack);
     assert.match(stack, /BitGoJsError/);
     assert.match(stack, /at Context\.namedFunc/);
     new NodeEnvironmentError().stack!.should.match(/NodeEnvironmentError:/);
diff --git a/modules/bitgo/test/v2/unit/internal/opengpgUtils.ts b/modules/bitgo/test/v2/unit/internal/opengpgUtils.ts
index 31d8b645ce..0845559ab7 100644
--- a/modules/bitgo/test/v2/unit/internal/opengpgUtils.ts
+++ b/modules/bitgo/test/v2/unit/internal/opengpgUtils.ts
@@ -1,13 +1,13 @@
 import * as openpgp from 'openpgp';
-import * as should from 'should';
+import should from 'should';
 import * as crypto from 'crypto';
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { openpgpUtils } from '@bitgo/sdk-core';
 import { ecc as secp256k1 } from '@bitgo/utxo-lib';
-import * as sinon from 'sinon';
+import sinon from 'sinon';
 
-const sodium = require('libsodium-wrappers-sumo');
+import sodium from 'libsodium-wrappers-sumo';
 
 describe('OpenGPG Utils Tests', function () {
   let senderKey: { publicKey: string; privateKey: string };
diff --git a/modules/bitgo/test/v2/unit/internal/tssUtils/bitgoMpcGpgPubKeys.ts b/modules/bitgo/test/v2/unit/internal/tssUtils/bitgoMpcGpgPubKeys.ts
index 5a4fd1e454..25dd9ca59a 100644
--- a/modules/bitgo/test/v2/unit/internal/tssUtils/bitgoMpcGpgPubKeys.ts
+++ b/modules/bitgo/test/v2/unit/internal/tssUtils/bitgoMpcGpgPubKeys.ts
@@ -11,8 +11,8 @@ import { TestBitGo } from '@bitgo/sdk-test';
 
 import { BitGo } from '../../../../../src';
 import * as openpgp from 'openpgp';
-import nock = require('nock');
-import assert = require('assert');
+import nock from 'nock';
+import assert from 'assert';
 
 class TestEcdsaMpcv2Utils extends ECDSAUtils.EcdsaMPCv2Utils {
   public async testPickBitgoPubGpgKeyForSigning(
diff --git a/modules/bitgo/test/v2/unit/internal/tssUtils/common.ts b/modules/bitgo/test/v2/unit/internal/tssUtils/common.ts
index 8b60405820..91e2917fb3 100644
--- a/modules/bitgo/test/v2/unit/internal/tssUtils/common.ts
+++ b/modules/bitgo/test/v2/unit/internal/tssUtils/common.ts
@@ -1,5 +1,5 @@
-import { ExchangeCommitmentResponse, RequestType, SignatureShareRecord } from '@bitgo/sdk-core';
-import * as nock from 'nock';
+import { type ExchangeCommitmentResponse, RequestType, type SignatureShareRecord } from '@bitgo/sdk-core';
+import nock from 'nock';
 import * as _ from 'lodash';
 
 export async function nockSendTxRequest(params: {
diff --git a/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsa.ts b/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsa.ts
index 05a5930c77..5a9c7a6e6e 100644
--- a/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsa.ts
+++ b/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsa.ts
@@ -1,8 +1,8 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import * as _ from 'lodash';
-import * as nock from 'nock';
+import nock from 'nock';
 import * as openpgp from 'openpgp';
-import * as should from 'should';
+import should from 'should';
 import * as sinon from 'sinon';
 
 import {
diff --git a/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsaMPCv2/createKeychains.ts b/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsaMPCv2/createKeychains.ts
index 5c73592fda..7802250cda 100644
--- a/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsaMPCv2/createKeychains.ts
+++ b/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsaMPCv2/createKeychains.ts
@@ -1,5 +1,5 @@
-import * as assert from 'assert';
-import * as nock from 'nock';
+import assert from 'assert';
+import nock from 'nock';
 import * as openpgp from 'openpgp';
 import * as crypto from 'crypto';
 
diff --git a/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsaMPCv2/signTxRequest.ts b/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsaMPCv2/signTxRequest.ts
index 9fe7614ad5..fcde574b44 100644
--- a/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsaMPCv2/signTxRequest.ts
+++ b/modules/bitgo/test/v2/unit/internal/tssUtils/ecdsaMPCv2/signTxRequest.ts
@@ -22,7 +22,7 @@ import {
   MPCv2PartyFromStringOrNumber,
 } from '@bitgo/public-types';
 import * as openpgp from 'openpgp';
-import * as nock from 'nock';
+import nock from 'nock';
 import { TestableBG, TestBitGo } from '@bitgo/sdk-test';
 import { BitGo } from '../../../../../../src';
 const createKeccakHash = require('keccak');
diff --git a/modules/bitgo/test/v2/unit/internal/tssUtils/eddsa.ts b/modules/bitgo/test/v2/unit/internal/tssUtils/eddsa.ts
index e93976ea68..948cb15124 100644
--- a/modules/bitgo/test/v2/unit/internal/tssUtils/eddsa.ts
+++ b/modules/bitgo/test/v2/unit/internal/tssUtils/eddsa.ts
@@ -1,6 +1,6 @@
-import * as sodium from 'libsodium-wrappers-sumo';
+import sodium from 'libsodium-wrappers-sumo';
 import * as _ from 'lodash';
-import * as nock from 'nock';
+import nock from 'nock';
 import * as openpgp from 'openpgp';
 import * as should from 'should';
 import * as sinon from 'sinon';
diff --git a/modules/bitgo/test/v2/unit/keychains.ts b/modules/bitgo/test/v2/unit/keychains.ts
index 2e9b7c922d..f195eeb91f 100644
--- a/modules/bitgo/test/v2/unit/keychains.ts
+++ b/modules/bitgo/test/v2/unit/keychains.ts
@@ -3,9 +3,9 @@
 //
 
 import { CoinFamily, CoinKind, coins, KeyCurve, UnderlyingAsset } from '@bitgo/statics';
-import * as assert from 'assert';
+import assert from 'assert';
 import * as _ from 'lodash';
-import * as nock from 'nock';
+import nock from 'nock';
 import * as should from 'should';
 import * as sinon from 'sinon';
 
diff --git a/modules/bitgo/test/v2/unit/lightning/lightningWallets.ts b/modules/bitgo/test/v2/unit/lightning/lightningWallets.ts
index 784823e29b..e4630b1708 100644
--- a/modules/bitgo/test/v2/unit/lightning/lightningWallets.ts
+++ b/modules/bitgo/test/v2/unit/lightning/lightningWallets.ts
@@ -1,6 +1,6 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { TestBitGo } from '@bitgo/sdk-test';
-import * as nock from 'nock';
+import nock from 'nock';
 import { BaseCoin, PendingApprovalData, State, Type } from '@bitgo/sdk-core';
 import {
   CreateInvoiceBody,
diff --git a/modules/bitgo/test/v2/unit/mmi.ts b/modules/bitgo/test/v2/unit/mmi.ts
index 7eca972c9b..2e0dba5787 100644
--- a/modules/bitgo/test/v2/unit/mmi.ts
+++ b/modules/bitgo/test/v2/unit/mmi.ts
@@ -1,7 +1,7 @@
 import { TestBitGo } from '@bitgo/sdk-test';
 import { BitGo } from '../../../src/bitgo';
 
-import * as nock from 'nock';
+import nock from 'nock';
 import { bip32 } from '@bitgo/utxo-lib';
 import { common, TransactionType } from '@bitgo/sdk-core';
 import { AvaxC as AvaxCAccountLib, getBuilder } from '../../../../account-lib';
diff --git a/modules/bitgo/test/v2/unit/pendingApproval.ts b/modules/bitgo/test/v2/unit/pendingApproval.ts
index 515eca0d93..201f2ee114 100644
--- a/modules/bitgo/test/v2/unit/pendingApproval.ts
+++ b/modules/bitgo/test/v2/unit/pendingApproval.ts
@@ -2,7 +2,7 @@
  * @prettier
  */
 import 'should';
-import * as nock from 'nock';
+import nock from 'nock';
 import * as sinon from 'sinon';
 import { TestableBG, TestBitGo } from '@bitgo/sdk-test';
 import { BitGo } from '../../../src';
diff --git a/modules/bitgo/test/v2/unit/recovery.ts b/modules/bitgo/test/v2/unit/recovery.ts
index f5383363e4..a1879292c3 100644
--- a/modules/bitgo/test/v2/unit/recovery.ts
+++ b/modules/bitgo/test/v2/unit/recovery.ts
@@ -1,5 +1,5 @@
 import * as should from 'should';
-import * as nock from 'nock';
+import nock from 'nock';
 
 import { mockSerializedChallengeWithProofs, TestBitGo } from '@bitgo/sdk-test';
 import { BitGo } from '../../../src';
diff --git a/modules/bitgo/test/v2/unit/seedValidator.ts b/modules/bitgo/test/v2/unit/seedValidator.ts
index 4486b355cc..e68d0f06da 100644
--- a/modules/bitgo/test/v2/unit/seedValidator.ts
+++ b/modules/bitgo/test/v2/unit/seedValidator.ts
@@ -1,6 +1,6 @@
 import 'should';
 
-import * as nock from 'nock';
+import nock from 'nock';
 import { TestBitGo } from '@bitgo/sdk-test';
 import { BitGo } from '../../../src/bitgo';
 
diff --git a/modules/bitgo/test/v2/unit/staking/goStakingWalletCommon.ts b/modules/bitgo/test/v2/unit/staking/goStakingWalletCommon.ts
index 5493baf1ba..3515ddfc37 100644
--- a/modules/bitgo/test/v2/unit/staking/goStakingWalletCommon.ts
+++ b/modules/bitgo/test/v2/unit/staking/goStakingWalletCommon.ts
@@ -1,4 +1,4 @@
-import * as nock from 'nock';
+import nock from 'nock';
 import * as should from 'should';
 import fixtures from '../../fixtures/staking/goStakingWallet';
 
diff --git a/modules/bitgo/test/v2/unit/staking/stakingWalletCommon.ts b/modules/bitgo/test/v2/unit/staking/stakingWalletCommon.ts
index 8cf8bfe034..f24be0332f 100644
--- a/modules/bitgo/test/v2/unit/staking/stakingWalletCommon.ts
+++ b/modules/bitgo/test/v2/unit/staking/stakingWalletCommon.ts
@@ -1,4 +1,4 @@
-import * as nock from 'nock';
+import nock from 'nock';
 import * as should from 'should';
 import fixtures from '../../fixtures/staking/stakingWallet';
 
diff --git a/modules/bitgo/test/v2/unit/staking/stakingWalletNonTSS.ts b/modules/bitgo/test/v2/unit/staking/stakingWalletNonTSS.ts
index 44779f7f7d..45d7fd570f 100644
--- a/modules/bitgo/test/v2/unit/staking/stakingWalletNonTSS.ts
+++ b/modules/bitgo/test/v2/unit/staking/stakingWalletNonTSS.ts
@@ -1,6 +1,6 @@
 import * as _ from 'lodash';
 
-import * as nock from 'nock';
+import nock from 'nock';
 import fixtures from '../../fixtures/staking/stakingWallet';
 
 import { Enterprise, Environments, Keychain, Keychains, StakingWallet, Wallet } from '@bitgo/sdk-core';
diff --git a/modules/bitgo/test/v2/unit/staking/stakingWalletTSS.ts b/modules/bitgo/test/v2/unit/staking/stakingWalletTSS.ts
index 99d39b5be1..e81fd4ac28 100644
--- a/modules/bitgo/test/v2/unit/staking/stakingWalletTSS.ts
+++ b/modules/bitgo/test/v2/unit/staking/stakingWalletTSS.ts
@@ -1,6 +1,6 @@
 import * as _ from 'lodash';
 
-import * as nock from 'nock';
+import nock from 'nock';
 import fixtures from '../../fixtures/staking/stakingWallet';
 
 import { Enterprise, Environments, Keychain, Keychains, StakingWallet, TssUtils, Wallet } from '@bitgo/sdk-core';
diff --git a/modules/bitgo/test/v2/unit/sweep.ts b/modules/bitgo/test/v2/unit/sweep.ts
index db07e991d7..61490c627b 100644
--- a/modules/bitgo/test/v2/unit/sweep.ts
+++ b/modules/bitgo/test/v2/unit/sweep.ts
@@ -1,4 +1,4 @@
-import * as nock from 'nock';
+import nock from 'nock';
 
 import { Environments, Wallet } from '@bitgo/sdk-core';
 import { TestableBG, TestBitGo } from '@bitgo/sdk-test';
diff --git a/modules/bitgo/test/v2/unit/tss/ecdsa.ts b/modules/bitgo/test/v2/unit/tss/ecdsa.ts
index 270315778e..0e34514790 100644
--- a/modules/bitgo/test/v2/unit/tss/ecdsa.ts
+++ b/modules/bitgo/test/v2/unit/tss/ecdsa.ts
@@ -33,7 +33,7 @@ import {
   mockSignWithPaillierChallengeRT,
 } from '../../fixtures/tss/ecdsaFixtures';
 
-import nock = require('nock');
+import nock from 'nock';
 
 type KeyShare = ECDSA.KeyShare;
 const encryptNShare = ECDSAMethods.encryptNShare;
diff --git a/modules/bitgo/test/v2/unit/tss/eddsa.ts b/modules/bitgo/test/v2/unit/tss/eddsa.ts
index fb52d1ea8d..65649b900e 100644
--- a/modules/bitgo/test/v2/unit/tss/eddsa.ts
+++ b/modules/bitgo/test/v2/unit/tss/eddsa.ts
@@ -28,7 +28,7 @@ import { TestBitGo } from '@bitgo/sdk-test';
 import { BitGo } from '../../../../src/bitgo';
 import { nockGetTxRequest, nockSendSignatureShare } from './helpers';
 import * as sinon from 'sinon';
-import nock = require('nock');
+import nock from 'nock';
 
 describe('test tss helper functions', function () {
   let mpc: Eddsa;
diff --git a/modules/bitgo/test/v2/unit/tss/helpers.ts b/modules/bitgo/test/v2/unit/tss/helpers.ts
index e21ec5e0b1..f2284e0e94 100644
--- a/modules/bitgo/test/v2/unit/tss/helpers.ts
+++ b/modules/bitgo/test/v2/unit/tss/helpers.ts
@@ -1,7 +1,7 @@
 import * as openpgp from 'openpgp';
 import { createSharedDataProof, SignatureShareRecord } from '@bitgo/sdk-core';
 import { getRoute } from '../internal/tssUtils/common';
-import * as nock from 'nock';
+import nock from 'nock';
 
 export async function nockSendSignatureShare(
   params: {
diff --git a/modules/bitgo/test/v2/unit/unspents.ts b/modules/bitgo/test/v2/unit/unspents.ts
index f37e295eee..2410d143ce 100644
--- a/modules/bitgo/test/v2/unit/unspents.ts
+++ b/modules/bitgo/test/v2/unit/unspents.ts
@@ -1,4 +1,4 @@
-import * as nock from 'nock';
+import nock from 'nock';
 import * as sinon from 'sinon';
 import { common, Wallet } from '@bitgo/sdk-core';
 import { TestBitGo } from '@bitgo/sdk-test';
diff --git a/modules/bitgo/test/v2/unit/wallet.ts b/modules/bitgo/test/v2/unit/wallet.ts
index 3bfa9eb004..2d94224618 100644
--- a/modules/bitgo/test/v2/unit/wallet.ts
+++ b/modules/bitgo/test/v2/unit/wallet.ts
@@ -5,7 +5,7 @@
 import * as should from 'should';
 import * as sinon from 'sinon';
 import '../lib/asserts';
-import * as nock from 'nock';
+import nock from 'nock';
 import * as _ from 'lodash';
 
 import {
diff --git a/modules/bitgo/test/v2/unit/wallets.ts b/modules/bitgo/test/v2/unit/wallets.ts
index e91a2a7632..3a4074e030 100644
--- a/modules/bitgo/test/v2/unit/wallets.ts
+++ b/modules/bitgo/test/v2/unit/wallets.ts
@@ -1,8 +1,8 @@
 //
 // Tests for Wallets
 //
-import * as assert from 'assert';
-import * as nock from 'nock';
+import assert from 'assert';
+import nock from 'nock';
 import * as sinon from 'sinon';
 import * as should from 'should';
 import * as _ from 'lodash';
diff --git a/modules/bitgo/tsconfig.json b/modules/bitgo/tsconfig.json
index d3fab23fed..5bab825300 100644
--- a/modules/bitgo/tsconfig.json
+++ b/modules/bitgo/tsconfig.json
@@ -10,7 +10,7 @@
       "../../node_modules/@types"
     ],
     "declarationDir": "./dist/types",
-    "esModuleInterop": false
+    "esModuleInterop": true
   },
   "include": [
     "src/**/*",
diff --git a/modules/sdk-api/src/types.ts b/modules/sdk-api/src/types.ts
index 128ed7e6bb..b7f118b6be 100644
--- a/modules/sdk-api/src/types.ts
+++ b/modules/sdk-api/src/types.ts
@@ -1,5 +1,5 @@
 import { EnvironmentName, IRequestTracer, V1Network } from '@bitgo/sdk-core';
-import { ECPairInterface } from '@bitgo/utxo-lib';
+import type { ECPairInterface } from '@bitgo/utxo-lib';
 import { type Agent } from 'http';
 
 const patchedRequestMethods = ['get', 'post', 'put', 'del', 'patch', 'options'] as const;
diff --git a/modules/sdk-api/src/v1/travelRule.ts b/modules/sdk-api/src/v1/travelRule.ts
index 395ba5da4b..fe8750fbe6 100644
--- a/modules/sdk-api/src/v1/travelRule.ts
+++ b/modules/sdk-api/src/v1/travelRule.ts
@@ -11,7 +11,7 @@
 // Copyright 2014, BitGo, Inc.  All Rights Reserved.
 //
 import { common, getNetwork, getSharedSecret, makeRandomKey, sanitizeLegacyPath } from '@bitgo/sdk-core';
-import { bip32, BIP32Interface } from '@bitgo/utxo-lib';
+import { bip32, type BIP32Interface } from '@bitgo/utxo-lib';
 import * as utxolib from '@bitgo/utxo-lib';
 import _ from 'lodash';
 
diff --git a/modules/sdk-coin-ada/test/unit/ada.ts b/modules/sdk-coin-ada/test/unit/ada.ts
index 930624467d..67330e90e7 100644
--- a/modules/sdk-coin-ada/test/unit/ada.ts
+++ b/modules/sdk-coin-ada/test/unit/ada.ts
@@ -2,7 +2,7 @@
  * @prettier
  */
 
-import should = require('should');
+import should from 'should';
 import { randomBytes } from 'crypto';
 import * as sinon from 'sinon';
 import { TestBitGo, TestBitGoAPI } from '@bitgo/sdk-test';
diff --git a/modules/sdk-coin-asi/test/unit/asi.ts b/modules/sdk-coin-asi/test/unit/asi.ts
index 955350becb..70e6cbd0d2 100644
--- a/modules/sdk-coin-asi/test/unit/asi.ts
+++ b/modules/sdk-coin-asi/test/unit/asi.ts
@@ -1,4 +1,4 @@
-import should = require('should');
+import should from 'should';
 import BigNumber from 'bignumber.js';
 import sinon from 'sinon';
 import { TestBitGo, TestBitGoAPI } from '@bitgo/sdk-test';
diff --git a/modules/sdk-coin-atom/test/unit/atom.ts b/modules/sdk-coin-atom/test/unit/atom.ts
index 38886a5b81..57efea9890 100644
--- a/modules/sdk-coin-atom/test/unit/atom.ts
+++ b/modules/sdk-coin-atom/test/unit/atom.ts
@@ -19,7 +19,7 @@ import {
   wrwUser,
   wrwUserDkls,
 } from '../resources/atom';
-import should = require('should');
+import should from 'should';
 
 describe('ATOM', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-baby/test/unit/baby.ts b/modules/sdk-coin-baby/test/unit/baby.ts
index 51a45059e7..f849e1e7b1 100644
--- a/modules/sdk-coin-baby/test/unit/baby.ts
+++ b/modules/sdk-coin-baby/test/unit/baby.ts
@@ -4,7 +4,7 @@ import BigNumber from 'bignumber.js';
 import sinon from 'sinon';
 import { Baby, Tbaby } from '../../src';
 import { TEST_SEND_MANY_TX, TEST_SEND_TX, TEST_TX_WITH_MEMO, address } from '../resources/baby';
-import should = require('should');
+import should from 'should';
 import utils from '../../src/lib/utils';
 
 describe('Babylon', function () {
diff --git a/modules/sdk-coin-bld/test/unit/bld.ts b/modules/sdk-coin-bld/test/unit/bld.ts
index 05b67dc01b..f43cd6f667 100644
--- a/modules/sdk-coin-bld/test/unit/bld.ts
+++ b/modules/sdk-coin-bld/test/unit/bld.ts
@@ -17,7 +17,7 @@ import {
   TEST_WITHDRAW_REWARDS_TX,
   wrwUser,
 } from '../resources/bld';
-import should = require('should');
+import should from 'should';
 
 describe('BLD', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-coreum/test/unit/coreum.ts b/modules/sdk-coin-coreum/test/unit/coreum.ts
index d3cd4819e5..1e3bfd7b02 100644
--- a/modules/sdk-coin-coreum/test/unit/coreum.ts
+++ b/modules/sdk-coin-coreum/test/unit/coreum.ts
@@ -19,7 +19,7 @@ import {
   testnetAddress,
   wrwUser,
 } from '../resources/tcoreum';
-import should = require('should');
+import should from 'should';
 
 describe('Coreum', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-cronos/test/unit/cronos.ts b/modules/sdk-coin-cronos/test/unit/cronos.ts
index a711c3ef95..12ddf3234f 100644
--- a/modules/sdk-coin-cronos/test/unit/cronos.ts
+++ b/modules/sdk-coin-cronos/test/unit/cronos.ts
@@ -1,4 +1,4 @@
-import should = require('should');
+import should from 'should';
 import BigNumber from 'bignumber.js';
 import sinon from 'sinon';
 import { TestBitGo, TestBitGoAPI } from '@bitgo/sdk-test';
diff --git a/modules/sdk-coin-dot/test/unit/dot.ts b/modules/sdk-coin-dot/test/unit/dot.ts
index ebd694dac0..907ae5cc36 100644
--- a/modules/sdk-coin-dot/test/unit/dot.ts
+++ b/modules/sdk-coin-dot/test/unit/dot.ts
@@ -1,7 +1,7 @@
 import { BitGoAPI } from '@bitgo/sdk-api';
 import { TestBitGo, TestBitGoAPI } from '@bitgo/sdk-test';
 import { randomBytes } from 'crypto';
-import should = require('should');
+import should from 'should';
 import { Dot, Tdot, KeyPair } from '../../src';
 import * as testData from '../fixtures';
 import { chainName, txVersion, genesisHash, specVersion } from '../resources';
diff --git a/modules/sdk-coin-hash/test/unit/hash.ts b/modules/sdk-coin-hash/test/unit/hash.ts
index ec6d629cfa..6264a74ed2 100644
--- a/modules/sdk-coin-hash/test/unit/hash.ts
+++ b/modules/sdk-coin-hash/test/unit/hash.ts
@@ -18,7 +18,7 @@ import {
   testnetAddress,
   wrwUser,
 } from '../resources/hash';
-import should = require('should');
+import should from 'should';
 
 describe('HASH', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-initia/test/unit/initia.ts b/modules/sdk-coin-initia/test/unit/initia.ts
index f3aad0ced5..d04c7c2c1b 100644
--- a/modules/sdk-coin-initia/test/unit/initia.ts
+++ b/modules/sdk-coin-initia/test/unit/initia.ts
@@ -1,4 +1,4 @@
-import should = require('should');
+import should from 'should';
 import BigNumber from 'bignumber.js';
 import sinon from 'sinon';
 import { TestBitGo, TestBitGoAPI } from '@bitgo/sdk-test';
diff --git a/modules/sdk-coin-injective/test/unit/injective.ts b/modules/sdk-coin-injective/test/unit/injective.ts
index fe1db84dbf..7874c880e0 100644
--- a/modules/sdk-coin-injective/test/unit/injective.ts
+++ b/modules/sdk-coin-injective/test/unit/injective.ts
@@ -18,8 +18,8 @@ import {
   TEST_WITHDRAW_REWARDS_TX,
   wrwUser,
 } from '../resources/injective';
-import should = require('should');
-import nock = require('nock');
+import should from 'should';
+import nock from 'nock';
 
 describe('INJ', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-islm/test/unit/islm.ts b/modules/sdk-coin-islm/test/unit/islm.ts
index 03d34cbe73..7bd3929697 100644
--- a/modules/sdk-coin-islm/test/unit/islm.ts
+++ b/modules/sdk-coin-islm/test/unit/islm.ts
@@ -12,7 +12,7 @@ import {
   TEST_WITHDRAW_REWARDS_TX,
   address,
 } from '../resources/islm';
-import should = require('should');
+import should from 'should';
 
 describe('Islm', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-mantra/test/unit/mantra.ts b/modules/sdk-coin-mantra/test/unit/mantra.ts
index 2110632bf1..90bf2aeb82 100644
--- a/modules/sdk-coin-mantra/test/unit/mantra.ts
+++ b/modules/sdk-coin-mantra/test/unit/mantra.ts
@@ -5,7 +5,7 @@ import sinon from 'sinon';
 import { Mantra, Tmantra } from '../../src';
 import utils from '../../src/lib/utils';
 import { TEST_SEND_MANY_TX, TEST_SEND_TX, TEST_TX_WITH_MEMO, address } from '../resources/mantra';
-import should = require('should');
+import should from 'should';
 
 describe('Mantra', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-osmo/test/unit/osmo.ts b/modules/sdk-coin-osmo/test/unit/osmo.ts
index 0d9d6b2112..446f6b6bed 100644
--- a/modules/sdk-coin-osmo/test/unit/osmo.ts
+++ b/modules/sdk-coin-osmo/test/unit/osmo.ts
@@ -18,7 +18,7 @@ import {
   TEST_WITHDRAW_REWARDS_TX,
   wrwUser,
 } from '../resources/osmo';
-import should = require('should');
+import should from 'should';
 
 describe('OSMO', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-rune/test/unit/rune.ts b/modules/sdk-coin-rune/test/unit/rune.ts
index 0b71ba4d17..6724c0b93e 100644
--- a/modules/sdk-coin-rune/test/unit/rune.ts
+++ b/modules/sdk-coin-rune/test/unit/rune.ts
@@ -10,7 +10,7 @@ import { RuneUtils } from '../../src/lib/utils';
 import { mainnetAddress } from '../resources/rune';
 import { TEST_SEND_TX, TEST_TX_WITH_MEMO, testnetAddress, wrwUser } from '../resources/trune';
 const bech32 = require('bech32-buffer');
-import should = require('should');
+import should from 'should';
 
 describe('Rune', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-sei/test/unit/sei.ts b/modules/sdk-coin-sei/test/unit/sei.ts
index e19467f946..e540dfd4b8 100644
--- a/modules/sdk-coin-sei/test/unit/sei.ts
+++ b/modules/sdk-coin-sei/test/unit/sei.ts
@@ -17,7 +17,7 @@ import {
   TEST_WITHDRAW_REWARDS_TX,
   wrwUser,
 } from '../resources/sei';
-import should = require('should');
+import should from 'should';
 
 describe('SEI', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-tao/test/unit/tao.ts b/modules/sdk-coin-tao/test/unit/tao.ts
index 8aa0bf706e..ce5411187e 100644
--- a/modules/sdk-coin-tao/test/unit/tao.ts
+++ b/modules/sdk-coin-tao/test/unit/tao.ts
@@ -1,4 +1,4 @@
-import should = require('should');
+import should from 'should';
 import { TestBitGo, TestBitGoAPI } from '@bitgo/sdk-test';
 import { BitGoAPI } from '@bitgo/sdk-api';
 import { Tao, Ttao } from '../../src';
diff --git a/modules/sdk-coin-tia/test/unit/tia.ts b/modules/sdk-coin-tia/test/unit/tia.ts
index 4bf7b3e3d1..69ccf173db 100644
--- a/modules/sdk-coin-tia/test/unit/tia.ts
+++ b/modules/sdk-coin-tia/test/unit/tia.ts
@@ -21,8 +21,8 @@ import {
   TEST_WITHDRAW_REWARDS_TX,
   wrwUser,
 } from '../resources/tia';
-import should = require('should');
-import nock = require('nock');
+import should from 'should';
+import nock from 'nock';
 
 describe('TIA', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-coin-zeta/test/unit/zeta.ts b/modules/sdk-coin-zeta/test/unit/zeta.ts
index a29d2df4ca..39e2623780 100644
--- a/modules/sdk-coin-zeta/test/unit/zeta.ts
+++ b/modules/sdk-coin-zeta/test/unit/zeta.ts
@@ -20,8 +20,8 @@ import {
   mockAccountDetailsResponse,
   wrwUser,
 } from '../resources/zeta';
-import should = require('should');
-import nock = require('nock');
+import should from 'should';
+import nock from 'nock';
 
 describe('Zeta', function () {
   let bitgo: TestBitGoAPI;
diff --git a/modules/sdk-core/src/account-lib/baseCoin/secp256k1ExtendedKeyPair.ts b/modules/sdk-core/src/account-lib/baseCoin/secp256k1ExtendedKeyPair.ts
index f8b068dd68..9032b13b1a 100644
--- a/modules/sdk-core/src/account-lib/baseCoin/secp256k1ExtendedKeyPair.ts
+++ b/modules/sdk-core/src/account-lib/baseCoin/secp256k1ExtendedKeyPair.ts
@@ -1,4 +1,4 @@
-import { bip32, BIP32Interface, ECPair, ECPairInterface } from '@bitgo/secp256k1';
+import { bip32, type BIP32Interface, ECPair, type ECPairInterface } from '@bitgo/secp256k1';
 import * as Crypto from '../util/crypto';
 import { KeyPairOptions, ExtendedKeys } from './iface';
 import { BaseKeyPair } from './baseKeyPair';
diff --git a/modules/sdk-core/src/bitgo/bitcoin.ts b/modules/sdk-core/src/bitgo/bitcoin.ts
index da4687909b..907f482558 100644
--- a/modules/sdk-core/src/bitgo/bitcoin.ts
+++ b/modules/sdk-core/src/bitgo/bitcoin.ts
@@ -3,7 +3,7 @@
  */
 
 import * as utxolib from '@bitgo/utxo-lib';
-import { BIP32Interface, ECPairInterface } from '@bitgo/utxo-lib';
+import type { BIP32Interface, ECPairInterface } from '@bitgo/utxo-lib';
 import * as common from '../common';
 import { V1Network } from './types';
 
diff --git a/modules/sdk-core/src/bitgo/ecdh.ts b/modules/sdk-core/src/bitgo/ecdh.ts
index 983662fa91..8887140310 100644
--- a/modules/sdk-core/src/bitgo/ecdh.ts
+++ b/modules/sdk-core/src/bitgo/ecdh.ts
@@ -14,7 +14,7 @@
 
 import * as assert from 'assert';
 import * as secp256k1 from 'secp256k1';
-import { ECPairInterface, BIP32Interface, bip32, ECPair } from '@bitgo/utxo-lib';
+import { type ECPairInterface, type BIP32Interface, bip32, ECPair } from '@bitgo/utxo-lib';
 
 /**
  * Calculate the Elliptic Curve Diffie Hellman
diff --git a/modules/sdk-core/src/bitgo/legacyBitcoin.ts b/modules/sdk-core/src/bitgo/legacyBitcoin.ts
index be02ffcf72..b3d29d02ab 100644
--- a/modules/sdk-core/src/bitgo/legacyBitcoin.ts
+++ b/modules/sdk-core/src/bitgo/legacyBitcoin.ts
@@ -1,5 +1,5 @@
 import * as utxolib from '@bitgo/utxo-lib';
-import { bip32, BIP32Interface, ECPairInterface } from '@bitgo/utxo-lib';
+import { bip32, type BIP32Interface, type ECPairInterface } from '@bitgo/utxo-lib';
 import { sanitizeLegacyPath } from '../api';
 import * as bitcoinUtil from './bitcoin';
 
diff --git a/modules/sdk-core/src/bitgo/recovery/initiate.ts b/modules/sdk-core/src/bitgo/recovery/initiate.ts
index e66e39ad49..2cf65e6bb3 100644
--- a/modules/sdk-core/src/bitgo/recovery/initiate.ts
+++ b/modules/sdk-core/src/bitgo/recovery/initiate.ts
@@ -2,7 +2,7 @@
  * @prettier
  */
 
-import { bip32, BIP32Interface } from '@bitgo/utxo-lib';
+import { bip32, type BIP32Interface } from '@bitgo/utxo-lib';
 import { BaseCoin } from '../baseCoin';
 import { BitGoBase } from '../bitgoBase';
 import { KrsProvider, krsProviders } from '../config';
diff --git a/modules/sdk-core/test/unit/account-lib/mpc/tss/ecdsa/fixtures.ts b/modules/sdk-core/test/unit/account-lib/mpc/tss/ecdsa/fixtures.ts
index 1bc31a204b..4c9b761cb3 100644
--- a/modules/sdk-core/test/unit/account-lib/mpc/tss/ecdsa/fixtures.ts
+++ b/modules/sdk-core/test/unit/account-lib/mpc/tss/ecdsa/fixtures.ts
@@ -1,4 +1,4 @@
-import { KeyPair, PrivateKey, PublicKey } from 'paillier-bigint';
+import { PrivateKey, PublicKey } from 'paillier-bigint';
 
 const publicKeys: PublicKey[] = [
   new PublicKey(
@@ -27,7 +27,7 @@ const publicKeys: PublicKey[] = [
   ),
 ];
 
-export const paillierKeyPairs: KeyPair[] = [
+export const paillierKeyPairs = [
   {
     publicKey: publicKeys[0],
     privateKey: new PrivateKey(
diff --git a/modules/sdk-rpc-wrapper/test/unit/evmRPCWrapper.ts b/modules/sdk-rpc-wrapper/test/unit/evmRPCWrapper.ts
index 09f04473a4..fec5b4f55a 100644
--- a/modules/sdk-rpc-wrapper/test/unit/evmRPCWrapper.ts
+++ b/modules/sdk-rpc-wrapper/test/unit/evmRPCWrapper.ts
@@ -22,7 +22,7 @@ import {
   txRequestForTypedDataSigning,
   transactionOptions,
 } from '../fixtures/evmRPCWrapperFixtures';
-import nock = require('nock');
+import nock from 'nock';
 import { personal_sign, eth_signTypedData, eth_sendTransaction } from '../../src/constants';
 
 describe('EVMRPCWrapper handleRPCCall', function () {
diff --git a/modules/statics/test/unit/account.ts b/modules/statics/test/unit/account.ts
index 33ff79eae9..a8f444e44f 100644
--- a/modules/statics/test/unit/account.ts
+++ b/modules/statics/test/unit/account.ts
@@ -1,4 +1,4 @@
-const should = require('should');
+import should from 'should';
 import { AccountCoin, Networks, UnderlyingAsset } from '../../src';
 import { txrpToken, xrpToken } from '../../src/account';
 
diff --git a/modules/statics/test/unit/base.ts b/modules/statics/test/unit/base.ts
index 037fe8a1d3..ae82216cd9 100644
--- a/modules/statics/test/unit/base.ts
+++ b/modules/statics/test/unit/base.ts
@@ -1,4 +1,4 @@
-const should = require('should');
+import should from 'should';
 const { UnderlyingAsset } = require('../../src/base');
 
 describe('UnderlyingAsset', function () {
diff --git a/modules/statics/test/unit/deps.ts b/modules/statics/test/unit/deps.ts
index 4ab001fa31..207b613c96 100644
--- a/modules/statics/test/unit/deps.ts
+++ b/modules/statics/test/unit/deps.ts
@@ -1,5 +1,8 @@
 import 'should';
-import * as pkg from '../../package.json';
+import { readFileSync } from 'fs';
+import { resolve } from 'path';
+
+const pkg = JSON.parse(readFileSync(resolve(process.cwd(), 'package.json'), 'utf8'));
 
 describe('Dependency Policy', () => {
   it('should not have any run time dependencies', () => {
diff --git a/modules/statics/test/unit/ofcCoinParity.ts b/modules/statics/test/unit/ofcCoinParity.ts
index ffd6511fb8..b549bc3fd5 100644
--- a/modules/statics/test/unit/ofcCoinParity.ts
+++ b/modules/statics/test/unit/ofcCoinParity.ts
@@ -1,4 +1,4 @@
-const should = require('should');
+import should from 'should';
 import { randomUUID } from 'crypto';
 
 import { CoinFeature, coins, UnderlyingAsset } from '../../src';
diff --git a/modules/statics/tsconfig.json b/modules/statics/tsconfig.json
index 6b59e3fe15..d85faa8229 100644
--- a/modules/statics/tsconfig.json
+++ b/modules/statics/tsconfig.json
@@ -3,6 +3,7 @@
   "compilerOptions": {
     "outDir": "./dist",
     "rootDir": ".",
+    "esModuleInterop": true,
     "strict": true,
     "typeRoots": ["../../types", "./node_modules/@types", "../../node_modules/@types"]
   },
diff --git a/modules/unspents/test/signedTx/inputWeights.ts b/modules/unspents/test/signedTx/inputWeights.ts
index 79906e5844..271baea75b 100644
--- a/modules/unspents/test/signedTx/inputWeights.ts
+++ b/modules/unspents/test/signedTx/inputWeights.ts
@@ -2,7 +2,7 @@ import * as assert from 'assert';
 
 import * as mocha from 'mocha';
 import * as utxolib from '@bitgo/utxo-lib';
-import { bip32, BIP32Interface } from '@bitgo/utxo-lib';
+import { bip32, type BIP32Interface } from '@bitgo/utxo-lib';
 import {
   getInputComponentsWeight,
   getInputWeight,
diff --git a/modules/unspents/test/signedTx/txGen.ts b/modules/unspents/test/signedTx/txGen.ts
index ca0d30be9b..2a4155c939 100644
--- a/modules/unspents/test/signedTx/txGen.ts
+++ b/modules/unspents/test/signedTx/txGen.ts
@@ -1,7 +1,7 @@
 /* eslint-disable @typescript-eslint/ban-ts-comment */
 
 import * as utxolib from '@bitgo/utxo-lib';
-import { bip32, BIP32Interface } from '@bitgo/utxo-lib';
+import { bip32, type BIP32Interface } from '@bitgo/utxo-lib';
 import _ from 'lodash';
 import 'lodash.combinations';
 import { Dimensions } from '../../src';
diff --git a/modules/utxo-bin/test/bip32.util.ts b/modules/utxo-bin/test/bip32.util.ts
index b76d3055cd..f6fc1f4044 100644
--- a/modules/utxo-bin/test/bip32.util.ts
+++ b/modules/utxo-bin/test/bip32.util.ts
@@ -1,7 +1,7 @@
 import * as crypto from 'crypto';
 
 import * as utxolib from '@bitgo/utxo-lib';
-import { BIP32Interface } from 'bip32';
+import type { BIP32Interface } from 'bip32';
 
 export type Triple<T> = [T, T, T];
 
diff --git a/modules/utxo-lib/src/bitgo/UtxoPsbt.ts b/modules/utxo-lib/src/bitgo/UtxoPsbt.ts
index 678bc17b2d..b019c5de8d 100644
--- a/modules/utxo-lib/src/bitgo/UtxoPsbt.ts
+++ b/modules/utxo-lib/src/bitgo/UtxoPsbt.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { Psbt as PsbtBase } from 'bip174';
 import {
   Bip32Derivation,
diff --git a/modules/utxo-lib/src/bitgo/UtxoTransaction.ts b/modules/utxo-lib/src/bitgo/UtxoTransaction.ts
index 650193a500..f1ba21220e 100644
--- a/modules/utxo-lib/src/bitgo/UtxoTransaction.ts
+++ b/modules/utxo-lib/src/bitgo/UtxoTransaction.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import * as bitcoinjs from 'bitcoinjs-lib';
 import * as varuint from 'varuint-bitcoin';
 import { toTNumber } from './tnumber';
diff --git a/modules/utxo-lib/src/bitgo/legacysafe/index.ts b/modules/utxo-lib/src/bitgo/legacysafe/index.ts
index ed3d6ec727..ce1fc1d231 100644
--- a/modules/utxo-lib/src/bitgo/legacysafe/index.ts
+++ b/modules/utxo-lib/src/bitgo/legacysafe/index.ts
@@ -4,7 +4,7 @@
  * P2SH address per wallet whose redeem script uses uncompressed public keys.
  * */
 
-import * as assert from 'assert';
+import assert from 'assert';
 import { ecc as eccLib } from '../../noble_ecc';
 import { isBitcoin, Network } from '../../networks';
 import { isTriple } from '../types';
diff --git a/modules/utxo-lib/src/bitgo/nonStandardHalfSigned.ts b/modules/utxo-lib/src/bitgo/nonStandardHalfSigned.ts
index 303f4c67aa..5774c00927 100644
--- a/modules/utxo-lib/src/bitgo/nonStandardHalfSigned.ts
+++ b/modules/utxo-lib/src/bitgo/nonStandardHalfSigned.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import * as opcodes from 'bitcoin-ops';
 import { classify, script as bscript, TxInput } from '../';
 
diff --git a/modules/utxo-lib/src/bitgo/outputScripts.ts b/modules/utxo-lib/src/bitgo/outputScripts.ts
index ed011820d3..2a154036ee 100644
--- a/modules/utxo-lib/src/bitgo/outputScripts.ts
+++ b/modules/utxo-lib/src/bitgo/outputScripts.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import * as bitcoinjs from 'bitcoinjs-lib';
 
 import { Network, supportsSegwit, supportsTaproot } from '../networks';
diff --git a/modules/utxo-lib/src/bitgo/psbt/fromHalfSigned.ts b/modules/utxo-lib/src/bitgo/psbt/fromHalfSigned.ts
index 71a8c98b32..31fe8067cd 100644
--- a/modules/utxo-lib/src/bitgo/psbt/fromHalfSigned.ts
+++ b/modules/utxo-lib/src/bitgo/psbt/fromHalfSigned.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { PsbtInputUpdate, PartialSig } from 'bip174/src/lib/interfaces';
 import { ecc as eccLib, TxOutput, taproot, getMainnet, networks } from '../..';
 import { UtxoTransaction } from '../UtxoTransaction';
diff --git a/modules/utxo-lib/src/bitgo/signature.ts b/modules/utxo-lib/src/bitgo/signature.ts
index 100b948302..83f931cecd 100644
--- a/modules/utxo-lib/src/bitgo/signature.ts
+++ b/modules/utxo-lib/src/bitgo/signature.ts
@@ -1,4 +1,4 @@
-import { BIP32Interface } from 'bip32';
+import type { BIP32Interface } from 'bip32';
 
 import { Transaction, taproot, TxOutput, ScriptSignature } from 'bitcoinjs-lib';
 
diff --git a/modules/utxo-lib/src/bitgo/wallet/Psbt.ts b/modules/utxo-lib/src/bitgo/wallet/Psbt.ts
index 3fc0cb6856..8d232e0489 100644
--- a/modules/utxo-lib/src/bitgo/wallet/Psbt.ts
+++ b/modules/utxo-lib/src/bitgo/wallet/Psbt.ts
@@ -1,8 +1,8 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { GlobalXpub, PartialSig, PsbtInput, TapScriptSig } from 'bip174/src/lib/interfaces';
 import { checkForInput } from 'bip174/src/lib/utils';
-import { BIP32Interface } from 'bip32';
+import type { BIP32Interface } from 'bip32';
 import * as bs58check from 'bs58check';
 import { UtxoPsbt } from '../UtxoPsbt';
 import { UtxoTransaction } from '../UtxoTransaction';
diff --git a/modules/utxo-lib/src/bitgo/wallet/WalletKeys.ts b/modules/utxo-lib/src/bitgo/wallet/WalletKeys.ts
index 875750ab78..d66a0aaa0b 100644
--- a/modules/utxo-lib/src/bitgo/wallet/WalletKeys.ts
+++ b/modules/utxo-lib/src/bitgo/wallet/WalletKeys.ts
@@ -9,7 +9,7 @@
  * Since we never use other derivations for utxo address scripts, the classes defined here only
  * allow exactly one level of derivation.
  */
-import { BIP32Interface } from 'bip32';
+import type { BIP32Interface } from 'bip32';
 
 import { Triple } from '../types';
 
diff --git a/modules/utxo-lib/src/bitgo/wallet/WalletOutput.ts b/modules/utxo-lib/src/bitgo/wallet/WalletOutput.ts
index acf8c2828e..b452a049ba 100644
--- a/modules/utxo-lib/src/bitgo/wallet/WalletOutput.ts
+++ b/modules/utxo-lib/src/bitgo/wallet/WalletOutput.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { Payment, taproot } from 'bitcoinjs-lib';
 import { PsbtOutput, PsbtOutputUpdate } from 'bip174/src/lib/interfaces';
diff --git a/modules/utxo-lib/src/bitgo/wallet/WalletUnspentSigner.ts b/modules/utxo-lib/src/bitgo/wallet/WalletUnspentSigner.ts
index 82e5cc4d9d..e44eb4393c 100644
--- a/modules/utxo-lib/src/bitgo/wallet/WalletUnspentSigner.ts
+++ b/modules/utxo-lib/src/bitgo/wallet/WalletUnspentSigner.ts
@@ -1,4 +1,4 @@
-import { BIP32Interface } from 'bip32';
+import type { BIP32Interface } from 'bip32';
 
 import { DerivedWalletKeys, eqPublicKey, RootWalletKeys, WalletKeys } from './WalletKeys';
 import { Triple } from '../types';
diff --git a/modules/utxo-lib/src/bitgo/wallet/psbt/PsbtOutputs.ts b/modules/utxo-lib/src/bitgo/wallet/psbt/PsbtOutputs.ts
index 92d34dfd69..4f92f68839 100644
--- a/modules/utxo-lib/src/bitgo/wallet/psbt/PsbtOutputs.ts
+++ b/modules/utxo-lib/src/bitgo/wallet/psbt/PsbtOutputs.ts
@@ -5,7 +5,7 @@
 import { isBufferArray, Triple } from '../../types';
 import { createOutputScript2of3, scriptTypes2Of3 } from '../../outputScripts';
 import { UtxoPsbt } from '../../UtxoPsbt';
-import { BIP32Interface } from 'bip32';
+import type { BIP32Interface } from 'bip32';
 import { checkForOutput } from 'bip174/src/lib/utils';
 import { PsbtOutput } from 'bip174/src/lib/interfaces';
 import { getSortedRootNodes } from './RootNodes';
diff --git a/modules/utxo-lib/src/bitgo/wallet/psbt/RootNodes.ts b/modules/utxo-lib/src/bitgo/wallet/psbt/RootNodes.ts
index 46e857f8fa..3f02b147e0 100644
--- a/modules/utxo-lib/src/bitgo/wallet/psbt/RootNodes.ts
+++ b/modules/utxo-lib/src/bitgo/wallet/psbt/RootNodes.ts
@@ -2,7 +2,7 @@
  * Contains helper methods for getting and sorting root nodes from a PSBT.
  */
 
-import * as assert from 'assert';
+import assert from 'assert';
 import * as bs58check from 'bs58check';
 
 import { UtxoPsbt } from '../../UtxoPsbt';
diff --git a/modules/utxo-lib/src/bitgo/zcash/address.ts b/modules/utxo-lib/src/bitgo/zcash/address.ts
index 4943d4cf60..6f55be9bde 100644
--- a/modules/utxo-lib/src/bitgo/zcash/address.ts
+++ b/modules/utxo-lib/src/bitgo/zcash/address.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { payments } from 'bitcoinjs-lib';
 import * as types from 'bitcoinjs-lib/src/types';
 import { Base58CheckResult } from 'bitcoinjs-lib/src/address';
diff --git a/modules/utxo-lib/src/noble_ecc.ts b/modules/utxo-lib/src/noble_ecc.ts
index 7d10bf95f5..cecef60942 100644
--- a/modules/utxo-lib/src/noble_ecc.ts
+++ b/modules/utxo-lib/src/noble_ecc.ts
@@ -1,5 +1,5 @@
-import * as createHash from 'create-hash';
-import * as createHmac from 'create-hmac';
+import createHash from 'create-hash';
+import createHmac from 'create-hmac';
 import { ECPairAPI, ECPairFactory, ECPairInterface } from 'ecpair';
 import * as necc from '@noble/secp256k1';
 import { BIP32API, BIP32Factory, BIP32Interface } from 'bip32';
diff --git a/modules/utxo-lib/src/taproot.ts b/modules/utxo-lib/src/taproot.ts
index 7d6de52249..2552970e5a 100644
--- a/modules/utxo-lib/src/taproot.ts
+++ b/modules/utxo-lib/src/taproot.ts
@@ -3,7 +3,7 @@
 // https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki
 
 import { TapTree as PsbtTapTree, TapLeaf as PsbtTapLeaf } from 'bip174/src/lib/interfaces';
-import assert = require('assert');
+import assert from 'assert';
 import FastPriorityQueue = require('fastpriorityqueue');
 import { script as bscript, crypto as bcrypto, payments as bpayments } from 'bitcoinjs-lib';
 import { ecc as eccLib } from './noble_ecc';
diff --git a/modules/utxo-lib/src/testutil/mock.ts b/modules/utxo-lib/src/testutil/mock.ts
index 4cb19ef65f..9960e595a5 100644
--- a/modules/utxo-lib/src/testutil/mock.ts
+++ b/modules/utxo-lib/src/testutil/mock.ts
@@ -1,5 +1,5 @@
-import * as assert from 'assert';
-import { BIP32Interface } from 'bip32';
+import assert from 'assert';
+import type { BIP32Interface } from 'bip32';
 import * as noble from '@noble/secp256k1';
 import * as utxolib from '..';
 import { getMainnet, Network, networks } from '../networks';
diff --git a/modules/utxo-lib/src/testutil/psbt.ts b/modules/utxo-lib/src/testutil/psbt.ts
index 6d7316efd8..f13e04c3d4 100644
--- a/modules/utxo-lib/src/testutil/psbt.ts
+++ b/modules/utxo-lib/src/testutil/psbt.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import {
   createOutputScriptP2shP2pk,
diff --git a/modules/utxo-lib/src/testutil/transaction.ts b/modules/utxo-lib/src/testutil/transaction.ts
index 7bbd448f43..e4a34e8fca 100644
--- a/modules/utxo-lib/src/testutil/transaction.ts
+++ b/modules/utxo-lib/src/testutil/transaction.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { ScriptType, ScriptType2Of3, scriptTypeP2shP2pk, scriptTypes2Of3 } from '../bitgo/outputScripts';
 import {
diff --git a/modules/utxo-lib/test/address/address.ts b/modules/utxo-lib/test/address/address.ts
index 9f16d7b677..c276010a7b 100644
--- a/modules/utxo-lib/test/address/address.ts
+++ b/modules/utxo-lib/test/address/address.ts
@@ -1,5 +1,5 @@
 import * as path from 'path';
-import * as assert from 'assert';
+import assert from 'assert';
 import * as utxolib from '../../src';
 import { getNetworkList, getNetworkName } from '../../src';
 import { getKeyTriple } from '../../src/testutil';
diff --git a/modules/utxo-lib/test/address/addressFormat.ts b/modules/utxo-lib/test/address/addressFormat.ts
index c6710b1721..c62806665b 100644
--- a/modules/utxo-lib/test/address/addressFormat.ts
+++ b/modules/utxo-lib/test/address/addressFormat.ts
@@ -1,7 +1,7 @@
 /**
  * Contains third-party test fixtures for nonstandard address formats
  */
-import * as assert from 'assert';
+import assert from 'assert';
 import { getMainnet, getNetworkList, getNetworkName, Network, networks } from '../../src';
 import { fromOutputScript } from '../../src/address';
 import {
diff --git a/modules/utxo-lib/test/address/bitcoincash/cashaddr.ts b/modules/utxo-lib/test/address/bitcoincash/cashaddr.ts
index 10b1fc0dee..c2514ba9aa 100644
--- a/modules/utxo-lib/test/address/bitcoincash/cashaddr.ts
+++ b/modules/utxo-lib/test/address/bitcoincash/cashaddr.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { getTestVectorsBitcoinCashAddressTranslations } from './fixtures';
 import { toOutputScriptFromCashAddress } from '../../../src/bitgo/bitcoincash/address';
diff --git a/modules/utxo-lib/test/address/ecash/ecashaddr.ts b/modules/utxo-lib/test/address/ecash/ecashaddr.ts
index 7a024e9e21..aa4894cf49 100644
--- a/modules/utxo-lib/test/address/ecash/ecashaddr.ts
+++ b/modules/utxo-lib/test/address/ecash/ecashaddr.ts
@@ -1,6 +1,6 @@
 import { fromOutputScriptWithFormat, toOutputScriptWithFormat } from '../../../src/addressFormat';
 import { networks } from '../../../src/networks';
-import * as assert from 'assert';
+import assert from 'assert';
 
 // Addresses used from https://www.npmjs.com/package/ecashaddrjs
 const ecashAddress = 'ecash:qpadrekpz6gjd8w0zfedmtqyld0r2j4qmuthccqd8d',
diff --git a/modules/utxo-lib/test/bitgo/Unspent.ts b/modules/utxo-lib/test/bitgo/Unspent.ts
index 72ad86becd..3cab17a0bf 100644
--- a/modules/utxo-lib/test/bitgo/Unspent.ts
+++ b/modules/utxo-lib/test/bitgo/Unspent.ts
@@ -1,4 +1,4 @@
-import assert = require('assert');
+import assert from 'assert';
 import { unspentSum } from '../../src/bitgo';
 
 function mockUnspent<TNumber extends number | bigint>(value: TNumber) {
diff --git a/modules/utxo-lib/test/bitgo/legacysafe/index.ts b/modules/utxo-lib/test/bitgo/legacysafe/index.ts
index 6ab3c3a602..bcc7f195fe 100644
--- a/modules/utxo-lib/test/bitgo/legacysafe/index.ts
+++ b/modules/utxo-lib/test/bitgo/legacysafe/index.ts
@@ -1,6 +1,6 @@
 import { toUncompressedPub, toCompressedPub, createLegacySafeOutputScript2of3 } from '../../../src/bitgo/legacysafe';
 import { getKey, getKeyTriple, getUncompressedKeyTriple } from '../../../src/testutil';
-import * as assert from 'assert';
+import assert from 'assert';
 import { networks } from '../../../src';
 import { fromOutputScript } from '../../../src/address';
 
diff --git a/modules/utxo-lib/test/bitgo/litecoin/mwebBehavior.ts b/modules/utxo-lib/test/bitgo/litecoin/mwebBehavior.ts
index 533ac132a7..253f5fce5e 100644
--- a/modules/utxo-lib/test/bitgo/litecoin/mwebBehavior.ts
+++ b/modules/utxo-lib/test/bitgo/litecoin/mwebBehavior.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import * as path from 'path';
 import * as fs from 'fs-extra';
diff --git a/modules/utxo-lib/test/bitgo/nonStandardHalfSigned.ts b/modules/utxo-lib/test/bitgo/nonStandardHalfSigned.ts
index 36ae39df1b..48b6be3c10 100644
--- a/modules/utxo-lib/test/bitgo/nonStandardHalfSigned.ts
+++ b/modules/utxo-lib/test/bitgo/nonStandardHalfSigned.ts
@@ -1,6 +1,6 @@
 import * as path from 'path';
 import * as fs from 'fs-extra';
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { networks, Network, getNetworkName } from '../../src';
 import { createTransactionFromBuffer } from '../../src/bitgo';
diff --git a/modules/utxo-lib/test/bitgo/outputScripts.ts b/modules/utxo-lib/test/bitgo/outputScripts.ts
index a0e26f0569..e245614e45 100644
--- a/modules/utxo-lib/test/bitgo/outputScripts.ts
+++ b/modules/utxo-lib/test/bitgo/outputScripts.ts
@@ -1,5 +1,5 @@
 import { networks } from 'bitcoinjs-lib';
-import * as assert from 'assert';
+import assert from 'assert';
 
 import {
   createOutputScript2of3,
diff --git a/modules/utxo-lib/test/bitgo/psbt/Musig2.ts b/modules/utxo-lib/test/bitgo/psbt/Musig2.ts
index f162ed6e6b..c4977a8997 100644
--- a/modules/utxo-lib/test/bitgo/psbt/Musig2.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/Musig2.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import {
   createPsbtFromHex,
diff --git a/modules/utxo-lib/test/bitgo/psbt/Musig2Util.ts b/modules/utxo-lib/test/bitgo/psbt/Musig2Util.ts
index 591c365379..548392b096 100644
--- a/modules/utxo-lib/test/bitgo/psbt/Musig2Util.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/Musig2Util.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import {
   addReplayProtectionUnspentToPsbt,
@@ -33,7 +33,7 @@ import {
 } from '../../../src/bitgo/outputScripts';
 import { mockWalletUnspent, replayProtectionKeyPair } from '../../../src/testutil';
 import { bip32, networks } from '../../../src';
-import { BIP32Interface } from 'bip32';
+import type { BIP32Interface } from 'bip32';
 import { isPsbtInputFinalized } from '../../../src/bitgo/PsbtUtil';
 
 export const network = networks.bitcoin;
diff --git a/modules/utxo-lib/test/bitgo/psbt/ProprietaryKeyVals.ts b/modules/utxo-lib/test/bitgo/psbt/ProprietaryKeyVals.ts
index 6cb1ebc3ae..92e721ae18 100644
--- a/modules/utxo-lib/test/bitgo/psbt/ProprietaryKeyVals.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/ProprietaryKeyVals.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { constructPsbt } from '../../../src/testutil';
 import { bip32, BIP32Interface, networks, testutil } from '../../../src';
 import { RootWalletKeys, PSBT_PROPRIETARY_IDENTIFIER } from '../../../src/bitgo';
diff --git a/modules/utxo-lib/test/bitgo/psbt/Psbt.ts b/modules/utxo-lib/test/bitgo/psbt/Psbt.ts
index dcc93a2341..cb538a2c33 100644
--- a/modules/utxo-lib/test/bitgo/psbt/Psbt.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/Psbt.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { Network, getNetworkName, networks, getNetworkList, testutil, isMainnet, Transaction } from '../../../src';
 import {
diff --git a/modules/utxo-lib/test/bitgo/psbt/PsbtOutputs.ts b/modules/utxo-lib/test/bitgo/psbt/PsbtOutputs.ts
index e878e59a23..3ed4f2bd09 100644
--- a/modules/utxo-lib/test/bitgo/psbt/PsbtOutputs.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/PsbtOutputs.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import * as bs58check from 'bs58check';
 
diff --git a/modules/utxo-lib/test/bitgo/psbt/SignVerifyPsbtAndTx.ts b/modules/utxo-lib/test/bitgo/psbt/SignVerifyPsbtAndTx.ts
index dd238836c4..d271350c07 100644
--- a/modules/utxo-lib/test/bitgo/psbt/SignVerifyPsbtAndTx.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/SignVerifyPsbtAndTx.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import {
   addXpubsToPsbt,
@@ -10,7 +10,7 @@ import {
   Triple,
   UtxoTransaction,
 } from '../../../src/bitgo';
-import { BIP32Interface } from 'bip32';
+import type { BIP32Interface } from 'bip32';
 import {
   constructPsbt,
   constructTxnBuilder,
diff --git a/modules/utxo-lib/test/bitgo/psbt/ZcashPsbt.ts b/modules/utxo-lib/test/bitgo/psbt/ZcashPsbt.ts
index 6d2d91a891..71840c7764 100644
--- a/modules/utxo-lib/test/bitgo/psbt/ZcashPsbt.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/ZcashPsbt.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { networks } from '../../../src';
 import * as utxolib from '../../../src';
diff --git a/modules/utxo-lib/test/bitgo/psbt/fromHalfSigned.ts b/modules/utxo-lib/test/bitgo/psbt/fromHalfSigned.ts
index a9bfa9cc02..cd6d08b325 100644
--- a/modules/utxo-lib/test/bitgo/psbt/fromHalfSigned.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/fromHalfSigned.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { describe, it } from 'mocha';
 
 import { BIP32Interface, getNetworkName, Network, networks } from '../../../src';
diff --git a/modules/utxo-lib/test/bitgo/psbt/psbtUtil.ts b/modules/utxo-lib/test/bitgo/psbt/psbtUtil.ts
index 9bb323b8f8..8ba2785a16 100644
--- a/modules/utxo-lib/test/bitgo/psbt/psbtUtil.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/psbtUtil.ts
@@ -29,7 +29,7 @@ import {
   ParsedPsbtTaproot,
 } from '../../../src/bitgo';
 import { parsePsbtInput, signWalletPsbt } from '../../../src/bitgo/wallet/Psbt';
-import * as assert from 'assert';
+import assert from 'assert';
 import { SignatureTargetType } from './Psbt';
 import { Network } from '../../../src';
 
diff --git a/modules/utxo-lib/test/bitgo/psbt/signingAndValidation.ts b/modules/utxo-lib/test/bitgo/psbt/signingAndValidation.ts
index 6042fa5aac..f35fcac2df 100644
--- a/modules/utxo-lib/test/bitgo/psbt/signingAndValidation.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/signingAndValidation.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { describe, it } from 'mocha';
 import * as bs58check from 'bs58check';
 
diff --git a/modules/utxo-lib/test/bitgo/psbt/toPsbtBuffer.ts b/modules/utxo-lib/test/bitgo/psbt/toPsbtBuffer.ts
index 03baaff220..60b8bf8fbb 100644
--- a/modules/utxo-lib/test/bitgo/psbt/toPsbtBuffer.ts
+++ b/modules/utxo-lib/test/bitgo/psbt/toPsbtBuffer.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { toPsbtBuffer } from '../../../src/bitgo';
 
diff --git a/modules/utxo-lib/test/bitgo/signature.ts b/modules/utxo-lib/test/bitgo/signature.ts
index 5cba5b2e0b..fbe698135f 100644
--- a/modules/utxo-lib/test/bitgo/signature.ts
+++ b/modules/utxo-lib/test/bitgo/signature.ts
@@ -1,5 +1,5 @@
-import * as assert from 'assert';
-import { BIP32Interface } from 'bip32';
+import assert from 'assert';
+import type { BIP32Interface } from 'bip32';
 
 import { script as bscript, classify, TxOutput } from '../../src';
 import { getKeyName } from '../../src/testutil';
diff --git a/modules/utxo-lib/test/bitgo/tnumber.ts b/modules/utxo-lib/test/bitgo/tnumber.ts
index 3757730189..1b15c94a9c 100644
--- a/modules/utxo-lib/test/bitgo/tnumber.ts
+++ b/modules/utxo-lib/test/bitgo/tnumber.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { toTNumber } from '../../src/bitgo';
 
 const values = [
diff --git a/modules/utxo-lib/test/bitgo/wallet/ScriptId.ts b/modules/utxo-lib/test/bitgo/wallet/ScriptId.ts
index b3b7228482..f62d635f74 100644
--- a/modules/utxo-lib/test/bitgo/wallet/ScriptId.ts
+++ b/modules/utxo-lib/test/bitgo/wallet/ScriptId.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { getScriptIdFromPath } from '../../../src/bitgo/wallet/ScriptId';
 
diff --git a/modules/utxo-lib/test/bitgo/wallet/WalletKeys.ts b/modules/utxo-lib/test/bitgo/wallet/WalletKeys.ts
index 226feb8880..c1a8e7cf08 100644
--- a/modules/utxo-lib/test/bitgo/wallet/WalletKeys.ts
+++ b/modules/utxo-lib/test/bitgo/wallet/WalletKeys.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { DerivedWalletKeys, RootWalletKeys, WalletKeys } from '../../../src/bitgo';
 import { getDefaultWalletKeys } from '../../../src/testutil';
diff --git a/modules/utxo-lib/test/bitgo/wallet/WalletOutput.ts b/modules/utxo-lib/test/bitgo/wallet/WalletOutput.ts
index 8219922369..bbb912b226 100644
--- a/modules/utxo-lib/test/bitgo/wallet/WalletOutput.ts
+++ b/modules/utxo-lib/test/bitgo/wallet/WalletOutput.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { getScriptIdFromOutput, getPsbtBip32DerivationOutputUpdate } from '../../../src/bitgo/wallet/WalletOutput';
 import { getDefaultWalletKeys } from '../../../src/testutil/keys';
diff --git a/modules/utxo-lib/test/bitgo/wallet/WalletUnspent.ts b/modules/utxo-lib/test/bitgo/wallet/WalletUnspent.ts
index fc43e51ef0..dfc1769d51 100644
--- a/modules/utxo-lib/test/bitgo/wallet/WalletUnspent.ts
+++ b/modules/utxo-lib/test/bitgo/wallet/WalletUnspent.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { Transaction, networks } from '../../../src';
 import {
diff --git a/modules/utxo-lib/test/bitgo/wallet/WalletUnspentSigner.ts b/modules/utxo-lib/test/bitgo/wallet/WalletUnspentSigner.ts
index 6a67bc06be..8d930888e8 100644
--- a/modules/utxo-lib/test/bitgo/wallet/WalletUnspentSigner.ts
+++ b/modules/utxo-lib/test/bitgo/wallet/WalletUnspentSigner.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { WalletUnspentSigner } from '../../../src/bitgo';
 import { getDefaultWalletKeys } from '../../../src/testutil';
diff --git a/modules/utxo-lib/test/bitgo/wallet/chains.ts b/modules/utxo-lib/test/bitgo/wallet/chains.ts
index 0e08406155..34b642b4d5 100644
--- a/modules/utxo-lib/test/bitgo/wallet/chains.ts
+++ b/modules/utxo-lib/test/bitgo/wallet/chains.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import {
   ChainCode,
   chainCodes,
diff --git a/modules/utxo-lib/test/bitgo/zcash/hashZip0244.ts b/modules/utxo-lib/test/bitgo/zcash/hashZip0244.ts
index d22f324b97..0b81240af8 100644
--- a/modules/utxo-lib/test/bitgo/zcash/hashZip0244.ts
+++ b/modules/utxo-lib/test/bitgo/zcash/hashZip0244.ts
@@ -1,5 +1,5 @@
-import * as assert from 'assert';
-import * as vectors from './fixtures/vectorsZip0244.json';
+import assert from 'assert';
+import vectors from './fixtures/vectorsZip0244.json';
 import { UnsupportedTransactionError, ZcashTransaction } from '../../../src/bitgo';
 import { Transaction, networks } from '../../../src';
 
diff --git a/modules/utxo-lib/test/classify.spec.ts b/modules/utxo-lib/test/classify.spec.ts
index 2d0053b3bd..3b994ffce0 100644
--- a/modules/utxo-lib/test/classify.spec.ts
+++ b/modules/utxo-lib/test/classify.spec.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { describe, it } from 'mocha';
 import * as classify from '../src/classify';
 import { script as bscript } from '../src/';
diff --git a/modules/utxo-lib/test/fixture.util.ts b/modules/utxo-lib/test/fixture.util.ts
index f9773d207b..2e6b324401 100644
--- a/modules/utxo-lib/test/fixture.util.ts
+++ b/modules/utxo-lib/test/fixture.util.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import * as mpath from 'path';
 import * as fs from 'fs-extra';
 
diff --git a/modules/utxo-lib/test/fixtures_thirdparty/parse.ts b/modules/utxo-lib/test/fixtures_thirdparty/parse.ts
index 9a9d20657c..05f346651f 100644
--- a/modules/utxo-lib/test/fixtures_thirdparty/parse.ts
+++ b/modules/utxo-lib/test/fixtures_thirdparty/parse.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { describe } from 'mocha';
 import { getNetworkList, getNetworkName, isBitcoinGold, isMainnet, isZcash, isDogecoin } from '../../src/networks';
 import {
diff --git a/modules/utxo-lib/test/integration_local_rpc/generate/RpcClient.ts b/modules/utxo-lib/test/integration_local_rpc/generate/RpcClient.ts
index 392311516a..19c268603f 100644
--- a/modules/utxo-lib/test/integration_local_rpc/generate/RpcClient.ts
+++ b/modules/utxo-lib/test/integration_local_rpc/generate/RpcClient.ts
@@ -1,11 +1,11 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import axios, { AxiosError } from 'axios';
 import buildDebug from 'debug';
 
 import { Network, getMainnet, getNetworkName, isZcash } from '../../../src/networks';
 import { RpcTransaction } from './RpcTypes';
 
-const utxolib = require('../../../src');
+import * as utxolib from '../../../src';
 
 const debug = buildDebug('RpcClient');
 
@@ -16,8 +16,11 @@ function sleep(millis: number): Promise<void> {
 }
 
 export class RpcError extends Error {
-  constructor(public rpcError: { code: number; message: string }) {
+  public rpcError: { code: number; message: string };
+
+  constructor(rpcError: { code: number; message: string }) {
     super(`RPC error: ${rpcError.message} (code=${rpcError.code})`);
+    this.rpcError = rpcError;
   }
 
   static isRpcErrorWithCode(e: Error, code: number): boolean {
@@ -30,9 +33,16 @@ type NetworkInfo = { subversion: string };
 const BITCOIN_CORE_22_99 = '/Satoshi:22.99.0/';
 
 export class RpcClient {
+  protected network: Network;
+  protected url: string;
+  protected networkInfo?: NetworkInfo;
   id = 0;
 
-  constructor(protected network: Network, protected url: string, protected networkInfo?: NetworkInfo) {}
+  constructor(network: Network, url: string, networkInfo?: NetworkInfo) {
+    this.network = network;
+    this.url = url;
+    this.networkInfo = networkInfo;
+  }
 
   /**
    * Poor man's Bluebird.map(arr, f, { concurrency })
@@ -198,8 +208,10 @@ export class RpcClient {
 }
 
 export class RpcClientWithWallet extends RpcClient {
-  constructor(network: Network, url: string, networkInfo: NetworkInfo, private walletName?: string) {
+  private walletName?: string;
+  constructor(network: Network, url: string, networkInfo: NetworkInfo, walletName?: string) {
     super(network, url, networkInfo);
+    this.walletName = walletName;
   }
 
   protected getUrl(): string {
diff --git a/modules/utxo-lib/test/integration_local_rpc/generate/fixtures.ts b/modules/utxo-lib/test/integration_local_rpc/generate/fixtures.ts
index e640946d30..995554635a 100644
--- a/modules/utxo-lib/test/integration_local_rpc/generate/fixtures.ts
+++ b/modules/utxo-lib/test/integration_local_rpc/generate/fixtures.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import * as fs from 'fs-extra';
 import * as path from 'path';
 
diff --git a/modules/utxo-lib/test/integration_local_rpc/generate/main.ts b/modules/utxo-lib/test/integration_local_rpc/generate/main.ts
index b84ab516d0..973cf38243 100644
--- a/modules/utxo-lib/test/integration_local_rpc/generate/main.ts
+++ b/modules/utxo-lib/test/integration_local_rpc/generate/main.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 
 const utxolib = require('../../../src');
 
diff --git a/modules/utxo-lib/test/integration_local_rpc/generate/outputScripts.util.ts b/modules/utxo-lib/test/integration_local_rpc/generate/outputScripts.util.ts
index 56188bfc83..d2bac2d3c8 100644
--- a/modules/utxo-lib/test/integration_local_rpc/generate/outputScripts.util.ts
+++ b/modules/utxo-lib/test/integration_local_rpc/generate/outputScripts.util.ts
@@ -1,4 +1,4 @@
-import { BIP32Interface } from 'bip32';
+import type { BIP32Interface } from 'bip32';
 import { Transaction, TxOutput } from 'bitcoinjs-lib';
 import * as utxolib from '../../../src';
 import {
diff --git a/modules/utxo-lib/test/integration_local_rpc/parse.ts b/modules/utxo-lib/test/integration_local_rpc/parse.ts
index 05dbd3b3b5..de6d5cde00 100644
--- a/modules/utxo-lib/test/integration_local_rpc/parse.ts
+++ b/modules/utxo-lib/test/integration_local_rpc/parse.ts
@@ -1,6 +1,6 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { describe, it } from 'mocha';
-import { BIP32Interface } from 'bip32';
+import type { BIP32Interface } from 'bip32';
 
 import { isTestnet, TxOutput, getNetworkList, getNetworkName, networks } from '../../src';
 import { getDefaultCosigner } from '../../src/testutil';
diff --git a/modules/utxo-lib/test/integration_local_rpc/parseDashEvo.ts b/modules/utxo-lib/test/integration_local_rpc/parseDashEvo.ts
index 102b90cff9..6d1e545f15 100644
--- a/modules/utxo-lib/test/integration_local_rpc/parseDashEvo.ts
+++ b/modules/utxo-lib/test/integration_local_rpc/parseDashEvo.ts
@@ -10,7 +10,7 @@ However the generated fixtures have the same format as the RPC responses so we w
 */
 
 import * as fs from 'fs-extra';
-import * as assert from 'assert';
+import assert from 'assert';
 
 import { RpcTransaction } from './generate/RpcTypes';
 import { normalizeParsedTransaction, normalizeRpcTransaction } from './compare';
diff --git a/modules/utxo-lib/test/networks.ts b/modules/utxo-lib/test/networks.ts
index 3147ed3f41..cfa2918762 100644
--- a/modules/utxo-lib/test/networks.ts
+++ b/modules/utxo-lib/test/networks.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import {
   getMainnet,
   getNetworkList,
diff --git a/modules/utxo-lib/test/payments.spec.ts b/modules/utxo-lib/test/payments.spec.ts
index c0761066e3..19c8143e1d 100644
--- a/modules/utxo-lib/test/payments.spec.ts
+++ b/modules/utxo-lib/test/payments.spec.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { describe, it } from 'mocha';
 import { ecc } from '../src';
 import { PaymentCreator } from 'bitcoinjs-lib';
diff --git a/modules/utxo-lib/test/taproot.spec.ts b/modules/utxo-lib/test/taproot.spec.ts
index f320e1c6cd..3760c82214 100644
--- a/modules/utxo-lib/test/taproot.spec.ts
+++ b/modules/utxo-lib/test/taproot.spec.ts
@@ -1,4 +1,4 @@
-import * as assert from 'assert';
+import assert from 'assert';
 import { ECPairAPI, ECPairFactory } from 'ecpair';
 import { ecc, taproot } from '../src';
 import { createTaprootOutputScript, getTaprootOutputKey } from '../src/taproot';
diff --git a/modules/utxo-lib/test/transaction_builder.spec.ts b/modules/utxo-lib/test/transaction_builder.spec.ts
index 8d3e375a74..d93c92a27a 100644
--- a/modules/utxo-lib/test/transaction_builder.spec.ts
+++ b/modules/utxo-lib/test/transaction_builder.spec.ts
@@ -1,5 +1,5 @@
 import * as bitcoinjs from 'bitcoinjs-lib';
-import * as assert from 'assert';
+import assert from 'assert';
 import { beforeEach, describe, it } from 'mocha';
 import {
   address as baddress,
diff --git a/modules/utxo-lib/test/transaction_util.ts b/modules/utxo-lib/test/transaction_util.ts
index 27b86526d8..3ea884ada4 100644
--- a/modules/utxo-lib/test/transaction_util.ts
+++ b/modules/utxo-lib/test/transaction_util.ts
@@ -1,5 +1,5 @@
-import { BIP32Interface } from 'bip32';
-import * as assert from 'assert';
+import type { BIP32Interface } from 'bip32';
+import assert from 'assert';
 import { TxOutput } from 'bitcoinjs-lib';
 
 import { networks, Network } from '../src';
diff --git a/modules/utxo-lib/tsconfig.json b/modules/utxo-lib/tsconfig.json
index ae3975a410..3b98dfb86e 100644
--- a/modules/utxo-lib/tsconfig.json
+++ b/modules/utxo-lib/tsconfig.json
@@ -3,7 +3,7 @@
   "compilerOptions": {
     "outDir": "./dist",
     "rootDir": ".",
-    "esModuleInterop": false,
+    "esModuleInterop": true,
     "typeRoots": ["../../types", "./node_modules/@types", "../../node_modules/@types"],
     "resolveJsonModule": true
   },
diff --git a/modules/utxo-staking/test/unit/babylon/key.utils.ts b/modules/utxo-staking/test/unit/babylon/key.utils.ts
index d7d665e161..0a1dedeea3 100644
--- a/modules/utxo-staking/test/unit/babylon/key.utils.ts
+++ b/modules/utxo-staking/test/unit/babylon/key.utils.ts
@@ -1,7 +1,7 @@
 import assert from 'assert';
 
 import * as utxolib from '@bitgo/utxo-lib';
-import { ECPairInterface } from '@bitgo/utxo-lib';
+import type { ECPairInterface } from '@bitgo/utxo-lib';
 import { getKey } from '@bitgo/utxo-core/testutil';
 
 export function getECKey(seed: string): ECPairInterface {
diff --git a/modules/utxo-staking/test/unit/babylon/transactions.ts b/modules/utxo-staking/test/unit/babylon/transactions.ts
index 972652fb52..0aacf6e108 100644
--- a/modules/utxo-staking/test/unit/babylon/transactions.ts
+++ b/modules/utxo-staking/test/unit/babylon/transactions.ts
@@ -3,7 +3,7 @@ import assert from 'assert';
 import * as vendor from '@bitgo/babylonlabs-io-btc-staking-ts';
 import * as bitcoinjslib from 'bitcoinjs-lib';
 import * as utxolib from '@bitgo/utxo-lib';
-import { ECPairInterface } from '@bitgo/utxo-lib';
+import type { ECPairInterface } from '@bitgo/utxo-lib';
 import { ast, Descriptor, Miniscript } from '@bitgo/wasm-miniscript';
 import {
   createAddressFromDescriptor,
diff --git a/modules/utxo-staking/test/unit/babylon/vendor.utils.ts b/modules/utxo-staking/test/unit/babylon/vendor.utils.ts
index 6929feec4b..ce1d03811e 100644
--- a/modules/utxo-staking/test/unit/babylon/vendor.utils.ts
+++ b/modules/utxo-staking/test/unit/babylon/vendor.utils.ts
@@ -1,5 +1,5 @@
 import * as bitcoinjslib from 'bitcoinjs-lib';
-import { ECPairInterface } from '@bitgo/utxo-lib';
+import type { ECPairInterface } from '@bitgo/utxo-lib';
 import * as vendor from '@bitgo/babylonlabs-io-btc-staking-ts';
 import * as babylonProtobuf from '@babylonlabs-io/babylon-proto-ts';
 import { toBech32 } from 'bitcoinjs-lib/src/address';