diff --git a/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_streaming_iterator.py b/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_streaming_iterator.py
index f5087204b2a..8b591fcd7da 100644
--- a/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_streaming_iterator.py
+++ b/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_streaming_iterator.py
@@ -168,7 +168,7 @@ class TestToolUseBlockClosedExactlyOnce:
     """
 
     @staticmethod
-    def _chat_completions_bridge_tool_turn() -> list:
+    def _chat_completions_bridge_tool_turn() -> list[dict[str, object]]:
         return [
             {"type": "response.created"},
             {