--- duplicity/librsync.py~	2022-04-08 13:29:23.000000000 -0500
+++ duplicity/librsync.py	2022-05-25 08:58:11.996961949 -0500
@@ -36,7 +36,7 @@
 from . import _librsync
 
 if os.environ.get(u'READTHEDOCS') == u'True':
-    import mock  # pylint: disable=import-error
+    import unittest.mock as mock # pylint: disable=import-error
     import duplicity
     duplicity._librsync = mock.MagicMock()
 
--- testing/unit/test_backend.py~	2022-04-08 13:29:23.000000000 -0500
+++ testing/unit/test_backend.py	2022-05-25 08:58:55.457807456 -0500
@@ -24,7 +24,7 @@
 standard_library.install_aliases()
 
 import sys
-import mock
+import unittest.mock as mock
 import unittest
 
 import duplicity.backend
--- testing/unit/test_selection.py~	2022-04-08 13:29:23.000000000 -0500
+++ testing/unit/test_selection.py	2022-05-25 08:59:11.349750964 -0500
@@ -32,7 +32,7 @@
 from duplicity.selection import *  # pylint: disable=unused-wildcard-import,redefined-builtin
 from duplicity.lazy import *  # pylint: disable=unused-wildcard-import,redefined-builtin
 from . import UnitTestCase
-from mock import patch
+from unittest.mock import patch
 
 
 class MatchingTest(UnitTestCase):
--- testing/unit/test_manifest.py~	2022-04-08 13:29:23.000000000 -0500
+++ testing/unit/test_manifest.py	2022-05-25 08:59:29.599686091 -0500
@@ -25,7 +25,7 @@
 
 import re
 import unittest
-from mock import patch
+from unittest.mock import patch
 
 from duplicity import config
 from duplicity import manifest
--- testing/unit/test_globmatch.py~	2022-04-08 13:29:23.000000000 -0500
+++ testing/unit/test_globmatch.py	2022-05-25 08:59:41.432644030 -0500
@@ -31,7 +31,7 @@
 from duplicity.globmatch import *  # pylint: disable=unused-wildcard-import,redefined-builtin
 from duplicity.path import *  # pylint: disable=unused-wildcard-import,redefined-builtin
 from testing import _runtest_dir
-from mock import patch
+from unittest.mock import patch
 
 
 def sel_file(glob_str, include, file_path):