diff --git a/tests/test_version_pinning_prune.py b/tests/test_version_pinning_prune.py
index 8787bdb..f0eb4b4 100644
--- a/tests/test_version_pinning_prune.py
+++ b/tests/test_version_pinning_prune.py
@@ -4,6 +4,7 @@ auto-pin bucket (pin_kind='auto').
 Design: docs/superpowers/specs/2026-05-13-note-version-pinning-design.md
 """
 from unittest.mock import AsyncMock, MagicMock, patch
+from tests.helpers import make_mock_session
 
 
 async def test_create_version_prune_sql_filters_to_unpinned():