diff --git a/tests/utils_tests/test_baseconv.py b/tests/utils_tests/test_baseconv.py
index ee545b432b9..d69a3a64125 100644
--- a/tests/utils_tests/test_baseconv.py
+++ b/tests/utils_tests/test_baseconv.py
@@ -1,4 +1,4 @@
-from unittest import TestCase
+from django.utils.unittest import TestCase
 from django.utils.baseconv import base2, base16, base36, base56, base62, base64, BaseConverter
 from django.utils.six.moves import xrange