diff --git a/requirements-dev.txt b/requirements-dev.txt
index 32265c8b9..84b33d865 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -4,7 +4,6 @@ autopep8
 coverage
 flake8
 flexmock
-mock
 pygit2 == 1.10.1 # https://github.com/libgit2/pygit2/issues/1176
 pylint
 pytest
diff --git a/tests/cli/test_gen_payload.py b/tests/cli/test_gen_payload.py
index 7d0f688e1..0ffc4ecfe 100644
--- a/tests/cli/test_gen_payload.py
+++ b/tests/cli/test_gen_payload.py
@@ -5,7 +5,7 @@
 from flexmock import flexmock
 
 import io
-from mock import AsyncMock
+from unittest.mock import AsyncMock
 import yaml
 import openshift as oc
 
diff --git a/tests/cli/test_rpms_build.py b/tests/cli/test_rpms_build.py
index ac2fe277b..afb8ac6f0 100644
--- a/tests/cli/test_rpms_build.py
+++ b/tests/cli/test_rpms_build.py
@@ -2,7 +2,7 @@
 import io
 
 import asynctest
-from mock import AsyncMock, MagicMock, Mock, patch
+from unittest.mock import AsyncMock, MagicMock, Mock, patch
 
 from doozerlib import gitdata, rpmcfg
 from doozerlib.cli.rpms_build import _rpms_rebase_and_build
diff --git a/tests/test_brew_inspector.py b/tests/test_brew_inspector.py
index d29a97868..34304410a 100644
--- a/tests/test_brew_inspector.py
+++ b/tests/test_brew_inspector.py
@@ -7,7 +7,7 @@
 import logging
 
 import unittest
-from mock import MagicMock, Mock, patch
+from unittest.mock import MagicMock, Mock, patch
 
 from doozerlib.image import BrewBuildImageInspector
 
diff --git a/tests/test_dblib.py b/tests/test_dblib.py
index d4837cacf..10cfdc688 100644
--- a/tests/test_dblib.py
+++ b/tests/test_dblib.py
@@ -6,7 +6,6 @@
 import pathlib
 import traceback
 import sys
-import mock
 
 
 class FakeMetaData(object):
diff --git a/tests/test_distgit/test_generic_distgit.py b/tests/test_distgit/test_generic_distgit.py
index 53b11ca2c..46d4e840d 100644
--- a/tests/test_distgit/test_generic_distgit.py
+++ b/tests/test_distgit/test_generic_distgit.py
@@ -4,7 +4,7 @@
 import unittest
 
 from flexmock import flexmock
-import mock
+from unittest import mock
 
 from doozerlib import distgit, model
 from doozerlib.assembly import AssemblyTypes
diff --git a/tests/test_distgit/test_image_distgit/test_image_distgit.py b/tests/test_distgit/test_image_distgit/test_image_distgit.py
index cb9bddcaa..00e1f520b 100644
--- a/tests/test_distgit/test_image_distgit/test_image_distgit.py
+++ b/tests/test_distgit/test_image_distgit/test_image_distgit.py
@@ -8,7 +8,7 @@
 from unittest.mock import Mock, patch
 
 from flexmock import flexmock
-from mock import MagicMock
+from unittest.mock import MagicMock
 
 from doozerlib import distgit, model
 from doozerlib.assembly import AssemblyTypes
diff --git a/tests/test_distgit/test_rpm_distgit.py b/tests/test_distgit/test_rpm_distgit.py
index 484edb552..0d1fa4604 100644
--- a/tests/test_distgit/test_rpm_distgit.py
+++ b/tests/test_distgit/test_rpm_distgit.py
@@ -1,7 +1,7 @@
 import unittest
 from pathlib import Path
 
-from mock import Mock, patch
+from unittest.mock import Mock, patch
 
 from doozerlib import distgit, model
 
diff --git a/tests/test_exectools.py b/tests/test_exectools.py
index 778daaac7..8fcab4b51 100644
--- a/tests/test_exectools.py
+++ b/tests/test_exectools.py
@@ -8,7 +8,7 @@
 import unittest
 
 import asynctest
-import mock
+from unittest import mock
 
 try:
     from importlib import reload
diff --git a/tests/test_image.py b/tests/test_image.py
index 02d4593d5..487552e20 100644
--- a/tests/test_image.py
+++ b/tests/test_image.py
@@ -7,7 +7,7 @@
 import logging
 import tempfile
 import shutil
-import mock
+from unittest import mock
 from flexmock import flexmock
 try:
     from importlib import reload
diff --git a/tests/test_metadata.py b/tests/test_metadata.py
index 2a6d279d5..2ca37e217 100644
--- a/tests/test_metadata.py
+++ b/tests/test_metadata.py
@@ -3,7 +3,7 @@
 import re
 import datetime
 
-from mock import MagicMock, Mock, patch
+from unittest.mock import MagicMock, Mock, patch
 
 from doozerlib.metadata import Metadata, CgitAtomFeedEntry, RebuildHintCode
 from doozerlib.brew import BuildStates
diff --git a/tests/test_olm_bundle.py b/tests/test_olm_bundle.py
index 468161df1..7b10eabdf 100644
--- a/tests/test_olm_bundle.py
+++ b/tests/test_olm_bundle.py
@@ -1,7 +1,7 @@
 import unittest
 
 from flexmock import flexmock
-from mock import MagicMock
+from unittest.mock import MagicMock
 
 from doozerlib.olm.bundle import OLMBundle
 
diff --git a/tests/test_plashet.py b/tests/test_plashet.py
index fa3661092..11f6096cb 100644
--- a/tests/test_plashet.py
+++ b/tests/test_plashet.py
@@ -1,7 +1,6 @@
 from unittest import TestCase
 
-from mock import MagicMock, Mock
-from mock.mock import patch
+from unittest.mock import MagicMock, Mock, patch
 
 from doozerlib.model import Model
 from doozerlib.plashet import PlashetBuilder
diff --git a/tests/test_rpm_builder.py b/tests/test_rpm_builder.py
index 6e6cb549d..73ee174f8 100644
--- a/tests/test_rpm_builder.py
+++ b/tests/test_rpm_builder.py
@@ -3,7 +3,7 @@
 from pathlib import Path
 
 import asynctest
-import mock
+from unittest import mock
 
 from doozerlib import distgit, gitdata, rpmcfg
 from doozerlib.exectools import RetryException
diff --git a/tests/test_source_modifications.py b/tests/test_source_modifications.py
index 3f1a17809..015d9aa89 100644
--- a/tests/test_source_modifications.py
+++ b/tests/test_source_modifications.py
@@ -5,7 +5,7 @@
 import tempfile
 import unittest
 
-import mock
+from unittest import mock
 import yaml.scanner
 
 from doozerlib.source_modifications import (AddModifier, RemoveModifier,