diff --git a/docker-compose.yml b/docker-compose.yml
index 46c4867..a18657a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -18,7 +18,7 @@ services:
       retries: 5
   
   subquery-node-avail:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -45,7 +45,7 @@ services:
       retries: 10
 
   subquery-node-vara:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -72,7 +72,7 @@ services:
       retries: 10
 
   subquery-node-dock:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -91,7 +91,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-dock:3000/ready" ]
       interval: 3s
@@ -99,7 +99,7 @@ services:
       retries: 10
 
   subquery-node-joystream:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -118,7 +118,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-joystream:3000/ready" ]
       interval: 3s
@@ -126,7 +126,7 @@ services:
       retries: 10
 
   subquery-node-polimec:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -145,7 +145,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-polimec:3000/ready" ]
       interval: 3s
@@ -153,7 +153,7 @@ services:
       retries: 10
 
   subquery-node-polkadot:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -172,7 +172,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: ["CMD", "curl", "-f", "http://subquery-node-polkadot:3000/ready"]
       interval: 3s
@@ -180,7 +180,7 @@ services:
       retries: 10
 
   subquery-node-kusama:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -199,7 +199,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-kusama:3000/ready" ]
       interval: 3s
@@ -207,7 +207,7 @@ services:
       retries: 10
 
   subquery-node-manta:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -226,7 +226,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-manta:3000/ready" ]
       interval: 3s
@@ -234,7 +234,7 @@ services:
       retries: 10
 
   subquery-node-moonbeam:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -253,7 +253,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-moonbeam:3000/ready" ]
       interval: 3s
@@ -261,7 +261,7 @@ services:
       retries: 10
 
   subquery-node-moonriver:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -280,7 +280,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-moonriver:3000/ready" ]
       interval: 3s
@@ -288,7 +288,7 @@ services:
       retries: 10
 
   subquery-node-aleph-zero:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -307,7 +307,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-aleph-zero:3000/ready" ]
       interval: 3s
@@ -315,7 +315,7 @@ services:
       retries: 10
 
   subquery-node-zeitgeist:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -334,7 +334,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-zeitgeist:3000/ready" ]
       interval: 3s
@@ -342,7 +342,7 @@ services:
       retries: 10
 
   subquery-node-westend:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -361,7 +361,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-westend:3000/ready" ]
       interval: 3s
@@ -369,7 +369,7 @@ services:
       retries: 10
 
   subquery-node-turing:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -388,7 +388,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-turing:3000/ready" ]
       interval: 3s
@@ -396,7 +396,7 @@ services:
       retries: 10
 
   subquery-node-ternoa:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -415,7 +415,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-ternoa:3000/ready" ]
       interval: 3s
@@ -423,7 +423,7 @@ services:
       retries: 10
 
   subquery-node-polkadex:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -442,7 +442,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-ternoa:3000/ready" ]
       interval: 3s
@@ -450,7 +450,7 @@ services:
       retries: 10
 
   subquery-node-calamari:
-    image: onfinality/subql-node:v2.2.1
+    image: onfinality/subql-node:v5.2.2
     depends_on:
       "postgres":
         condition: service_healthy
@@ -469,7 +469,7 @@ services:
       - --db-schema=app
       - --disable-historical
       - --query-limit=1000000
-      - --batch-size=30
+      - --batch-size=10
     healthcheck:
       test: [ "CMD", "curl", "-f", "http://subquery-node-calamari:3000/ready" ]
       interval: 3s
diff --git a/src/mappings/polkadot.ts b/src/mappings/polkadot.ts
index d0353e2..41cfc6c 100644
--- a/src/mappings/polkadot.ts
+++ b/src/mappings/polkadot.ts
@@ -1,6 +1,6 @@
 import {SubstrateEvent} from "@subql/types";
 import {handleNewEra, handleNewSession, POOLED_STAKING_TYPE} from "./common";
-import {createRewardCurveConfig, CustomRelaychainRewardCalculator} from "./rewards/Relaychain";
+import {CustomPolkadotRewardCalculator} from "./rewards/Relaychain";
 import {NominationPoolRewardCalculator} from "./rewards/NominationPoolRewardCalculator";
 import {ValidatorStakingRewardCalculator} from "./rewards/ValidatorStakingRewardCalculator";
 import {ValidatorEraInfoDataSource} from "./era/ValidatorEraInfoDataSource";
@@ -18,11 +18,8 @@ const POLKADOT_GENESIS = "0x91b171bb158e2d3848fa23a9f1c25182fb8e20313b2c1eb49219
 const DIRECT_STAKING_TYPE = "relaychain"
 
 export async function PolkadotRewardCalculator(eraInfoDataSource: EraInfoDataSource): Promise<ValidatorStakingRewardCalculator> {
-    const config = await createRewardCurveConfig({
-        parachainReservedSupplyFraction: 0.2,
-    })
-    
-    return CustomRelaychainRewardCalculator(eraInfoDataSource, config)
+
+    return CustomPolkadotRewardCalculator(eraInfoDataSource)
 }
 
 export async function handlePolkadotNewEra(_: SubstrateEvent): Promise<void> {
diff --git a/src/mappings/rewards/Relaychain.ts b/src/mappings/rewards/Relaychain.ts
index 5e3c010..52d0336 100644
--- a/src/mappings/rewards/Relaychain.ts
+++ b/src/mappings/rewards/Relaychain.ts
@@ -5,6 +5,7 @@ import {ValidatorStakingRewardCalculator} from "./ValidatorStakingRewardCalculat
 import {Inflation, StakedInfo} from "./inflation/Inflation";
 import Big from "big.js";
 import {EraInfoDataSource} from "../era/EraInfoDataSource";
+import {PolkadotStakingInflation} from "./inflation/PolkadotNewStakingInflation";
 
 const LOWEST_PUBLIC_ID = 2000
 
@@ -51,6 +52,12 @@ export function CustomRelaychainRewardCalculator(eraInfoDataSource: EraInfoDataS
     return new DefaultValidatorStakingRewardCalculator(inflation, eraInfoDataSource)
 }
 
+export function CustomPolkadotRewardCalculator(eraInfoDataSource: EraInfoDataSource): ValidatorStakingRewardCalculator {
+    let inflation = new PolkadotStakingInflation()
+
+    return new DefaultValidatorStakingRewardCalculator(inflation, eraInfoDataSource)
+}
+
 export async function RelaychainRewardCalculator(eraInfoDataSource: EraInfoDataSource): Promise<ValidatorStakingRewardCalculator> {
     return CustomRelaychainRewardCalculator(eraInfoDataSource, await createRewardCurveConfig())
 }
diff --git a/src/mappings/rewards/inflation/PolkadotNewStakingInflation.ts b/src/mappings/rewards/inflation/PolkadotNewStakingInflation.ts
new file mode 100644
index 0000000..798f526
--- /dev/null
+++ b/src/mappings/rewards/inflation/PolkadotNewStakingInflation.ts
@@ -0,0 +1,12 @@
+import {Inflation, StakedInfo} from "./Inflation";
+import Big from "big.js";
+
+export class PolkadotStakingInflation implements Inflation {
+
+    async from(stakedInfo: StakedInfo): Promise<number> {
+        let era_mint = Big(2_794_778_104_198_508)
+        let inflation = era_mint.mul(365).div(stakedInfo.totalIssuance).toNumber()
+
+        return inflation
+    }
+}