diff --git a/test-requirements.txt b/test-requirements.txt
index 7d9c2587..2422e284 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -9,7 +9,6 @@
 #
 charm-tools>=2.4.4
 requests>=2.18.4
-mock>=1.2
 flake8>=2.2.4,<=2.4.1
 stestr>=2.2.0
 coverage>=4.5.2
diff --git a/unit_tests/test_actions.py b/unit_tests/test_actions.py
index 3195d375..06c81fc4 100644
--- a/unit_tests/test_actions.py
+++ b/unit_tests/test_actions.py
@@ -1,6 +1,6 @@
 import sys
-import mock
-from mock import MagicMock
+from unittest import mock
+from unittest.mock import MagicMock
 
 from test_utils import CharmTestCase
 
diff --git a/unit_tests/test_actions_openstack_upgrade.py b/unit_tests/test_actions_openstack_upgrade.py
index 7637d06b..5919eb87 100644
--- a/unit_tests/test_actions_openstack_upgrade.py
+++ b/unit_tests/test_actions_openstack_upgrade.py
@@ -1,4 +1,4 @@
-from mock import patch
+from unittest.mock import patch
 import os
 
 from test_utils import (
diff --git a/unit_tests/test_neutron_contexts.py b/unit_tests/test_neutron_contexts.py
index 48b7a6b7..3f3e272c 100644
--- a/unit_tests/test_neutron_contexts.py
+++ b/unit_tests/test_neutron_contexts.py
@@ -2,7 +2,7 @@ import io
 
 from contextlib import contextmanager
 
-from mock import (
+from unittest.mock import (
     MagicMock,
     patch
 )
diff --git a/unit_tests/test_neutron_hooks.py b/unit_tests/test_neutron_hooks.py
index b3f7bd1f..b7f3a190 100644
--- a/unit_tests/test_neutron_hooks.py
+++ b/unit_tests/test_neutron_hooks.py
@@ -1,6 +1,6 @@
 import sys
 
-from mock import MagicMock, patch, call
+from unittest.mock import MagicMock, patch, call
 
 # python-apt is not installed as part of test-requirements but is imported by
 # some charmhelpers modules so create a fake import.
diff --git a/unit_tests/test_neutron_utils.py b/unit_tests/test_neutron_utils.py
index 548971e6..57b82263 100644
--- a/unit_tests/test_neutron_utils.py
+++ b/unit_tests/test_neutron_utils.py
@@ -1,4 +1,4 @@
-from mock import MagicMock, call, patch, ANY
+from unittest.mock import MagicMock, call, patch, ANY
 
 import charmhelpers.core.hookenv as hookenv
 import neutron_utils
diff --git a/unit_tests/test_utils.py b/unit_tests/test_utils.py
index 3272028c..a077ebd2 100644
--- a/unit_tests/test_utils.py
+++ b/unit_tests/test_utils.py
@@ -4,7 +4,7 @@ import logging
 import unittest
 import yaml
 
-from mock import patch
+from unittest.mock import patch
 
 
 def load_config():