diff --git a/tests/check_framework/test_urls.py b/tests/check_framework/test_urls.py
index a1ac727057..786d040493 100644
--- a/tests/check_framework/test_urls.py
+++ b/tests/check_framework/test_urls.py
@@ -4,6 +4,7 @@ from django.core.checks.urls import (
 )
 from django.test import SimpleTestCase
 from django.test.utils import override_settings
+from django.utils import six
 
 
 class CheckUrlsTest(SimpleTestCase):
@@ -34,7 +35,7 @@ class CheckUrlsTest(SimpleTestCase):
         result = check_url_config(None)
         warning = result[0]
         self.assertEqual(warning.id, 'urls.E004')
-        self.assertRegexpMatches(warning.msg, (
+        six.assertRegex(self, warning.msg, (
             r"^Your URL pattern \('\^tuple/\$', <function <lambda> at 0x(\w+)>\) is "
             r"invalid. Ensure that urlpatterns is a list of url\(\) instances.$"
         ))