diff --git a/tests/test_litellm/router_utils/test_fallback_event_handlers.py b/tests/test_litellm/router_utils/test_fallback_event_handlers.py
index 23e068ef708..24477248a8a 100644
--- a/tests/test_litellm/router_utils/test_fallback_event_handlers.py
+++ b/tests/test_litellm/router_utils/test_fallback_event_handlers.py
@@ -1,4 +1,5 @@
 import json
+from typing import NoReturn
 from unittest.mock import MagicMock, patch
 
 import httpx
@@ -167,7 +168,7 @@ async def _acreate_batch(*args, **kwargs):
     raise AssertionError("only used for its __name__")
 
 
-async def _acreate_file(*args, **kwargs):
+async def _acreate_file(*args: object, **kwargs: object) -> NoReturn:
     raise AssertionError("only used for its __name__")
 
 
diff --git a/tests/test_litellm/test_router.py b/tests/test_litellm/test_router.py
index 01b288d651b..833e425a3f9 100644
--- a/tests/test_litellm/test_router.py
+++ b/tests/test_litellm/test_router.py
@@ -518,7 +518,7 @@ async def test_async_router_acreate_file_does_not_fall_back_across_model_groups(
         fallbacks=[{"azure-gpt": ["openai-gpt"]}],
     )
 
-    def fail_azure(*args, **kwargs):
+    def fail_azure(*args: object, **kwargs: object) -> MagicMock:
         if kwargs.get("model") == "azure/my-azure-deployment":
             raise litellm.APIConnectionError(
                 message="Connection error.",