diff --git a/src/blenderbim/test/core/bootstrap.py b/src/blenderbim/test/core/bootstrap.py
index 0ce584280a..f6b36d1427 100644
--- a/src/blenderbim/test/core/bootstrap.py
+++ b/src/blenderbim/test/core/bootstrap.py
@@ -20,7 +20,8 @@ import sys
 import json
 import pytest
 import blenderbim.core.tool
-from typing import Any, Self, Optional
+from typing import Any, Optional
+from typing_extensions import Self
 
 
 @pytest.fixture