diff --git a/tests/test_release_tag.py b/tests/test_release_tag.py
index 8fe590af..2d9fce69 100644
--- a/tests/test_release_tag.py
+++ b/tests/test_release_tag.py
@@ -168,7 +168,7 @@ def test_tag_is_security_release(
         }
     }
     """
-    mocker.patch("urllib.request.urlopen", return_value=io.BytesIO(mock_response))
+    mocker.patch("release.urlopen", return_value=io.BytesIO(mock_response))
 
     # Act
     tag = release.Tag(version)