diff --git a/trackers_integration/tests/test_internals.py b/trackers_integration/tests/test_internals.py
index a72fc4e..f39923e 100644
--- a/trackers_integration/tests/test_internals.py
+++ b/trackers_integration/tests/test_internals.py
@@ -92,13 +92,13 @@ def test_add_view_shows_dropdown_select_of_existing_bug_trackers(self):
         self.assertContains(
             response,
             '<option value="https://mantis.example.com:8443/mantisbt">'
-            'https://mantis.example.com:8443/mantisbt</option>',
+            "https://mantis.example.com:8443/mantisbt</option>",
             html=True,
         )
         self.assertContains(
             response,
             '<option value="http://open-project.example.com">'
-            'http://open-project.example.com</option>',
+            "http://open-project.example.com</option>",
             html=True,
         )