diff --git a/designateclient/tests/v2/test_nameservers.py b/designateclient/tests/v2/test_nameservers.py
index 5ecde209..cceab219 100644
--- a/designateclient/tests/v2/test_nameservers.py
+++ b/designateclient/tests/v2/test_nameservers.py
@@ -13,7 +13,7 @@
 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 # License for the specific language governing permissions and limitations
 # under the License.
-from mock import patch
+from unittest.mock import patch
 
 from designateclient.tests import v2
 from designateclient.v2 import zones
diff --git a/designateclient/tests/v2/test_recordsets.py b/designateclient/tests/v2/test_recordsets.py
index 44523966..1478f223 100644
--- a/designateclient/tests/v2/test_recordsets.py
+++ b/designateclient/tests/v2/test_recordsets.py
@@ -13,9 +13,9 @@
 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 # License for the specific language governing permissions and limitations
 # under the License.
+from unittest.mock import patch
 import uuid
 
-from mock import patch
 import testtools
 
 from designateclient import exceptions
diff --git a/designateclient/tests/v2/test_timeout.py b/designateclient/tests/v2/test_timeout.py
index a5f4d521..0b42a39a 100644
--- a/designateclient/tests/v2/test_timeout.py
+++ b/designateclient/tests/v2/test_timeout.py
@@ -16,7 +16,7 @@
 
 from keystoneauth1.identity import generic
 from keystoneauth1 import session as keystone_session
-from mock import Mock
+from unittest.mock import Mock
 
 from designateclient.tests import v2
 from designateclient.v2.client import Client