diff --git a/tests/test_atlases.py b/tests/test_atlases.py
index 1c7abc0dfe6d2d8720c86edf605f0bd782af5c6d..ebfe1ba8579f0f550a9d6f1984c88bd349d87662 100644
--- a/tests/test_atlases.py
+++ b/tests/test_atlases.py
@@ -13,7 +13,8 @@ import              os
 import os.path   as op
 import numpy     as np
 
-import mock
+
+from unittest import mock
 import pytest
 
 import tests