diff --git a/tests/integration/responses/test_tool_responses.py b/tests/integration/responses/test_tool_responses.py
index 3f1c35214..ce0e65b4b 100644
--- a/tests/integration/responses/test_tool_responses.py
+++ b/tests/integration/responses/test_tool_responses.py
@@ -260,7 +260,7 @@ def test_response_non_streaming_mcp_tool(compat_client, text_model_id, case, cap
 
         for tool in tools:
             if tool["type"] == "mcp":
-                tool["headers"] = {"Authorization": "Bearer test-token"}
+                tool["authorization"] = "test-token"
 
         response = compat_client.responses.create(
             model=text_model_id,