diff --git a/oracle/oracle/rewards/controller.py b/oracle/oracle/rewards/controller.py
index 96631e9..3400eeb 100644
--- a/oracle/oracle/rewards/controller.py
+++ b/oracle/oracle/rewards/controller.py
@@ -25,6 +25,7 @@
     MGNO_RATE,
     NETWORK,
     NETWORK_CONFIG,
+    ORACLE_WITHDRAWAL_CHUNK_SIZE,
     REWARD_VOTE_FILENAME,
     WAD,
 )
@@ -221,7 +222,7 @@ async def calculate_withdrawal_rewards(
         )
         execution_client = get_web3_client()
 
-        chunk_size = 50000
+        chunk_size = ORACLE_WITHDRAWAL_CHUNK_SIZE
         for block_number in range(from_block, to_block, chunk_size):
             withdrawals_amount += await self.fetch_withdrawal_chunk(
                 validator_indexes=validator_indexes,
diff --git a/oracle/settings.py b/oracle/settings.py
index d255335..fa78ec2 100644
--- a/oracle/settings.py
+++ b/oracle/settings.py
@@ -28,6 +28,10 @@
 
 # oracle
 ORACLE_PROCESS_INTERVAL = config("ORACLE_PROCESS_INTERVAL", default=15, cast=int)
+ORACLE_WITHDRAWAL_CHUNK_SIZE = config(
+    "ORACLE_WITHDRAWAL_CHUNK_SIZE", default=50000, cast=int
+)
+
 
 IPFS_FETCH_ENDPOINTS = config(
     "IPFS_FETCH_ENDPOINTS",