diff --git a/mistral_tempest_tests/tests/base.py b/mistral_tempest_tests/tests/base.py
index 923648c..f0391fa 100644
--- a/mistral_tempest_tests/tests/base.py
+++ b/mistral_tempest_tests/tests/base.py
@@ -13,8 +13,8 @@
 # under the License.
 
 import os
+from unittest import mock
 
-import mock
 from tempest import config
 from tempest import test as test
 
diff --git a/requirements.txt b/requirements.txt
index c443092..3c3206f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,6 @@ oslo.utils>=3.33.0 # Apache-2.0
 oslo.log>=3.36.0 # Apache-2.0
 oslo.serialization!=2.19.1,>=2.18.0 # Apache-2.0
 paramiko>=2.0.0 # LGPLv2.1+
-mock>=2.0.0 # BSD
 tempest>=17.1.0 # Apache-2.0
 testtools>=2.2.0 # MIT
 python-keystoneclient>=3.8.0 # Apache-2.0