diff --git a/pytest_mock.py b/pytest_mock.py
index ef4a777..6e9d011 100644
--- a/pytest_mock.py
+++ b/pytest_mock.py
@@ -1,12 +1,11 @@
 import inspect
-import sys
 
 import pytest
 
-if sys.version_info >= (3, 3): # pragma: no cover
-    import unittest.mock as mock_module
-else:
+try:
     import mock as mock_module
+except ImportError:
+    import unittest.mock as mock_module
 
 version = '1.1'