diff --git a/CHANGELOG.md b/CHANGELOG.md
index c6121d4e..efd428c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 ## [Unreleased]
 
 ### [v1.1.1] 2024-04-12
-- [Update] Update project dependencies.
+- [7b61d4f](https://github.com/bloxapp/ssv-network/commit/7b61d4f) - [Fix] Revert when passing an empty public keys list.
 
 ## [Released]
 
diff --git a/contracts/interfaces/ISSVNetworkCore.sol b/contracts/interfaces/ISSVNetworkCore.sol
index 70990e72..af8b6b94 100644
--- a/contracts/interfaces/ISSVNetworkCore.sol
+++ b/contracts/interfaces/ISSVNetworkCore.sol
@@ -89,6 +89,7 @@ interface ISSVNetworkCore {
     error PublicKeysSharesLengthMismatch(); // 0x9ad467b8
     error IncorrectValidatorStateWithData(bytes publicKey); // 0x89307938
     error ValidatorAlreadyExistsWithData(bytes publicKey); // 0x388e7999
+    error EmptyPublicKeysList(); // df83e679
 
     // legacy errors
     error ValidatorAlreadyExists(); // 0x8d09a73e
diff --git a/contracts/modules/SSVClusters.sol b/contracts/modules/SSVClusters.sol
index f4b6fd4f..8d60a5d8 100644
--- a/contracts/modules/SSVClusters.sol
+++ b/contracts/modules/SSVClusters.sol
@@ -49,13 +49,14 @@ contract SSVClusters is ISSVClusters {
         uint256 amount,
         Cluster memory cluster
     ) external override {
-        if (publicKeys.length != sharesData.length) revert PublicKeysSharesLengthMismatch();
+        uint256 validatorsLength = publicKeys.length;
+
+        if (validatorsLength == 0) revert EmptyPublicKeysList();
+        if (validatorsLength != sharesData.length) revert PublicKeysSharesLengthMismatch();
 
         StorageData storage s = SSVStorage.load();
         StorageProtocol storage sp = SSVStorageProtocol.load();
 
-        uint256 validatorsLength = publicKeys.length;
-
         ValidatorLib.validateOperatorsLength(operatorIds);
 
         for (uint i; i < validatorsLength; ++i) {
diff --git a/test/helpers/gas-usage.ts b/test/helpers/gas-usage.ts
index 96e770ef..c2496afb 100644
--- a/test/helpers/gas-usage.ts
+++ b/test/helpers/gas-usage.ts
@@ -89,7 +89,7 @@ const MAX_GAS_PER_GROUP: any = {
   [GasGroup.REDUCE_OPERATOR_FEE]: 51900,
 
   [GasGroup.REGISTER_VALIDATOR_EXISTING_CLUSTER]: 202000,
-  [GasGroup.REGISTER_VALIDATOR_NEW_STATE]: 235500,
+  [GasGroup.REGISTER_VALIDATOR_NEW_STATE]: 236000,
   [GasGroup.REGISTER_VALIDATOR_WITHOUT_DEPOSIT]: 180600,
 
   [GasGroup.BULK_REGISTER_10_VALIDATOR_NEW_STATE_4]: 835500,