diff --git a/workspace/tests/test_heartbeat_runtime_metadata.py b/workspace/tests/test_heartbeat_runtime_metadata.py
index fcc4f711..3fae87eb 100644
--- a/workspace/tests/test_heartbeat_runtime_metadata.py
+++ b/workspace/tests/test_heartbeat_runtime_metadata.py
@@ -9,7 +9,6 @@ keeping heartbeat resilient to a missing/broken adapter discovery
 path."""
 import sys
 from types import SimpleNamespace
-from unittest.mock import MagicMock
 
 import pytest