diff --git a/jupyterhub/tests/test_pages.py b/jupyterhub/tests/test_pages.py
index 1250fd21..61910c38 100644
--- a/jupyterhub/tests/test_pages.py
+++ b/jupyterhub/tests/test_pages.py
@@ -2,6 +2,7 @@
 
 import asyncio
 import sys
+from unittest import mock
 from urllib.parse import urlencode, urlparse
 
 from bs4 import BeautifulSoup
@@ -13,7 +14,6 @@ from ..utils import url_path_join as ujoin
 from .. import orm
 from ..auth import Authenticator
 
-import mock
 import pytest
 
 from .mocking import FormSpawner