--- a/cubicweb/test/unittest_cwconfig.py	Fri Apr 05 17:58:19 2019 +0200
+++ b/cubicweb/test/unittest_cwconfig.py	Tue Mar 26 16:22:31 2019 +0100
@@ -26,8 +26,7 @@
 from pkg_resources import EntryPoint, Distribution
 from tempfile import TemporaryDirectory
 import unittest
-
-from mock import patch
+from unittest.mock import patch
 
 from logilab.common.modutils import cleanup_sys_modules