diff --git a/litellm/proxy/db/redis_update_buffer.py b/litellm/proxy/db/redis_update_buffer.py
index ab43dc575d..3d27e41d15 100644
--- a/litellm/proxy/db/redis_update_buffer.py
+++ b/litellm/proxy/db/redis_update_buffer.py
@@ -80,30 +80,35 @@ class RedisUpdateBuffer:
                 "redis_cache is None, skipping store_in_memory_spend_updates_in_redis"
             )
             return
-        db_spend_update_transactions: DBSpendUpdateTransactions = (
-            DBSpendUpdateTransactions(
-                user_list_transactions=prisma_client.user_list_transactions,
-                end_user_list_transactions=prisma_client.end_user_list_transactions,
-                key_list_transactions=prisma_client.key_list_transactions,
-                team_list_transactions=prisma_client.team_list_transactions,
-                team_member_list_transactions=prisma_client.team_member_list_transactions,
-                org_list_transactions=prisma_client.org_list_transactions,
+        async with prisma_client.in_memory_transaction_lock:
+            db_spend_update_transactions: DBSpendUpdateTransactions = (
+                DBSpendUpdateTransactions(
+                    user_list_transactions=prisma_client.user_list_transactions,
+                    end_user_list_transactions=prisma_client.end_user_list_transactions,
+                    key_list_transactions=prisma_client.key_list_transactions,
+                    team_list_transactions=prisma_client.team_list_transactions,
+                    team_member_list_transactions=prisma_client.team_member_list_transactions,
+                    org_list_transactions=prisma_client.org_list_transactions,
+                )
             )
-        )
 
-        # only store in redis if there are any updates to commit
-        if (
-            self._number_of_transactions_to_store_in_redis(db_spend_update_transactions)
-            == 0
-        ):
-            return
+            # only store in redis if there are any updates to commit
+            if (
+                self._number_of_transactions_to_store_in_redis(
+                    db_spend_update_transactions
+                )
+                == 0
+            ):
+                return
 
-        list_of_transactions = [safe_dumps(db_spend_update_transactions)]
-        await self.redis_cache.async_rpush(
-            key=REDIS_UPDATE_BUFFER_KEY,
-            values=list_of_transactions,
-        )
-        self._clear_all_in_memory_spend_updates(prisma_client)
+            list_of_transactions = [safe_dumps(db_spend_update_transactions)]
+            await self.redis_cache.async_rpush(
+                key=REDIS_UPDATE_BUFFER_KEY,
+                values=list_of_transactions,
+            )
+
+            # clear the in-memory spend updates
+            RedisUpdateBuffer._clear_all_in_memory_spend_updates(prisma_client)
 
     @staticmethod
     def _number_of_transactions_to_store_in_redis(
@@ -201,12 +206,15 @@ class RedisUpdateBuffer:
 
     @staticmethod
     def _parse_list_of_transactions(
-        list_of_transactions: List[str],
+        list_of_transactions: Union[Any, List[Any]],
     ) -> List[DBSpendUpdateTransactions]:
         """
         Parses the list of transactions from Redis
         """
-        return [json.loads(transaction) for transaction in list_of_transactions]
+        if isinstance(list_of_transactions, list):
+            return [json.loads(transaction) for transaction in list_of_transactions]
+        else:
+            return [json.loads(list_of_transactions)]
 
     @staticmethod
     def _combine_list_of_transactions(
diff --git a/litellm/proxy/utils.py b/litellm/proxy/utils.py
index d0d4ea9b4e..66dd224dff 100644
--- a/litellm/proxy/utils.py
+++ b/litellm/proxy/utils.py
@@ -1121,6 +1121,7 @@ class PrismaClient:
         self.iam_token_db_auth: Optional[bool] = str_to_bool(
             os.getenv("IAM_TOKEN_DB_AUTH")
         )
+        self.in_memory_transaction_lock = asyncio.Lock()
         verbose_proxy_logger.debug("Creating Prisma Client..")
         try:
             from prisma import Prisma  # type: ignore