diff --git a/tc_messageBroker/rabbit_mq/saga/saga_base.py b/tc_messageBroker/rabbit_mq/saga/saga_base.py
index cce0847..af73c3e 100644
--- a/tc_messageBroker/rabbit_mq/saga/saga_base.py
+++ b/tc_messageBroker/rabbit_mq/saga/saga_base.py
@@ -57,7 +57,7 @@ def next(
         self,
         publish_method: Callable,
         call_function: Callable,
-        mongo_creds: dict[str, Any] = None,
+        mongo_creds: dict[str, Any] | None = None,
         **kwargs,
     ):
         """
diff --git a/tc_messageBroker/utils/credentials.py b/tc_messageBroker/utils/credentials.py
index 4615607..bda1105 100644
--- a/tc_messageBroker/utils/credentials.py
+++ b/tc_messageBroker/utils/credentials.py
@@ -1,6 +1,7 @@
-from dotenv import load_dotenv
 import os
 
+from dotenv import load_dotenv
+
 
 def load_mongo_credentials():
     """