diff --git a/sqlite_utils/db.py b/sqlite_utils/db.py
index 0c0a250..0d2135e 100644
--- a/sqlite_utils/db.py
+++ b/sqlite_utils/db.py
@@ -28,7 +28,6 @@ from typing import (
     cast,
     Any,
     Callable,
-    ContextManager,
     Dict,
     Generator,
     Iterable,