diff --git a/api/tests/unit_tests/services/test_conversation_variable_updater.py b/api/tests/unit_tests/services/test_conversation_variable_updater.py
index 157424a2a7..ff471a06fe 100644
--- a/api/tests/unit_tests/services/test_conversation_variable_updater.py
+++ b/api/tests/unit_tests/services/test_conversation_variable_updater.py
@@ -2,8 +2,8 @@ from types import SimpleNamespace
 from unittest.mock import MagicMock
 
 import pytest
-
 from core.variables.variables import StringVariable
+
 from services.conversation_variable_updater import ConversationVariableNotFoundError, ConversationVariableUpdater