diff --git a/mcpgateway/main.py b/mcpgateway/main.py
index 684c5ac33..e31e7152c 100644
--- a/mcpgateway/main.py
+++ b/mcpgateway/main.py
@@ -183,6 +183,7 @@ async def lifespan(_app: FastAPI) -> AsyncIterator[None]:
         if plugin_manager:
             await plugin_manager.initialize()
             logger.info(f"Plugin manager initialized with {plugin_manager.plugin_count} plugins")
+
         await tool_service.initialize()
         await resource_service.initialize()
         await prompt_service.initialize()
diff --git a/mcpgateway/utils/verify_credentials.py b/mcpgateway/utils/verify_credentials.py
index 4944f828a..078f273c4 100644
--- a/mcpgateway/utils/verify_credentials.py
+++ b/mcpgateway/utils/verify_credentials.py
@@ -97,8 +97,8 @@ async def verify_jwt_token(token: str) -> dict:
         True
 
         Test expired token:
-        >>> import datetime
-        >>> expired_payload = {'sub': 'bob', 'exp': datetime.datetime.utcnow() - datetime.timedelta(hours=1)}
+        >>> from datetime import datetime, timezone, timedelta
+        >>> expired_payload = {'sub': 'bob', 'exp': datetime.now(timezone.utc) - timedelta(hours=1)}
         >>> expired_token = jwt.encode(expired_payload, 'secret', algorithm='HS256')
         >>> try:
         ...     asyncio.run(vc.verify_jwt_token(expired_token))