---
 __pkginfo__.py    |    2 +-
 test_columnize.py |    3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

--- a/__pkginfo__.py
+++ b/__pkginfo__.py
@@ -45,7 +45,7 @@ exec(
     )
 )
 
-tests_require = ["mock"]
+tests_require = [""]
 web = "https://github.com/rocky/pycolumnize"
 # tracebacks in zip files are funky and not debuggable
 zip_safe = False
--- a/test_columnize.py
+++ b/test_columnize.py
@@ -1,7 +1,8 @@
 #!/usr/bin/env python
 # -*- Python -*-
 "Unit test for Columnize"
-import mock, operator, os, sys, unittest
+import operator, os, sys, unittest
+import unittest.mock as mock
 
 top_builddir = os.path.join(os.path.dirname(__file__), os.path.pardir)
 if top_builddir[-1] != os.path.sep: