diff --git a/chain_service/repositories/chain.py b/chain_service/repositories/chain.py
index 02db532..1512ecc 100644
--- a/chain_service/repositories/chain.py
+++ b/chain_service/repositories/chain.py
@@ -14,7 +14,6 @@ class ChainRepository:
     async def upsert(self, chain: Chain) -> Chain:
         query = {"_id": chain.id}
         payload = chain.model_dump(by_alias=True)
-
         await self.collection.replace_one(query, payload, upsert=True)
         return chain