diff --git a/tests/test_api_diagnostic_extended.py b/tests/test_api_diagnostic_extended.py
index f2afbff3..595ceaa1 100644
--- a/tests/test_api_diagnostic_extended.py
+++ b/tests/test_api_diagnostic_extended.py
@@ -3,7 +3,6 @@
 from unittest.mock import patch
 
 import pytest
-from fastapi.testclient import TestClient
 
 
 @pytest.mark.unit