diff --git a/tempest/lib/auth.py b/tempest/lib/auth.py
index ab9860e..8bdf98e 100644
--- a/tempest/lib/auth.py
+++ b/tempest/lib/auth.py
@@ -21,7 +21,6 @@
 from urllib import parse as urlparse
 
 from oslo_log import log as logging
-import six
 
 from tempest.lib import exceptions
 from tempest.lib.services.identity.v2 import token_client as json_v2id
@@ -65,8 +64,7 @@
     return url
 
 
-@six.add_metaclass(abc.ABCMeta)
-class AuthProvider(object):
+class AuthProvider(object, metaclass=abc.ABCMeta):
     """Provide authentication"""
 
     SCOPES = set(['project'])
diff --git a/tempest/lib/common/cred_client.py b/tempest/lib/common/cred_client.py
index f6e9b49..f13d6d0 100644
--- a/tempest/lib/common/cred_client.py
+++ b/tempest/lib/common/cred_client.py
@@ -13,7 +13,6 @@
 import abc
 
 from oslo_log import log as logging
-import six
 
 from tempest.lib import auth
 from tempest.lib import exceptions as lib_exc
@@ -22,8 +21,7 @@
 LOG = logging.getLogger(__name__)
 
 
-@six.add_metaclass(abc.ABCMeta)
-class CredsClient(object):
+class CredsClient(object, metaclass=abc.ABCMeta):
     """This class is a wrapper around the identity clients
 
      to provide a single interface for managing credentials in both v2 and v3
diff --git a/tempest/lib/common/cred_provider.py b/tempest/lib/common/cred_provider.py
index d0fccbc..35bca1d 100644
--- a/tempest/lib/common/cred_provider.py
+++ b/tempest/lib/common/cred_provider.py
@@ -14,14 +14,12 @@
 
 import abc
 
-import six
 
 from tempest.lib import auth
 from tempest.lib import exceptions
 
 
-@six.add_metaclass(abc.ABCMeta)
-class CredentialProvider(object):
+class CredentialProvider(object, metaclass=abc.ABCMeta):
     def __init__(self, identity_version, name=None,
                  network_resources=None, credentials_domain=None,
                  admin_role=None, identity_uri=None):
diff --git a/tempest/test_discover/plugins.py b/tempest/test_discover/plugins.py
index b20b60e..1d69d9d 100644
--- a/tempest/test_discover/plugins.py
+++ b/tempest/test_discover/plugins.py
@@ -15,7 +15,6 @@
 import abc
 
 from oslo_log import log as logging
-import six
 import stevedore
 
 from tempest.lib.common.utils import misc
@@ -24,8 +23,7 @@
 LOG = logging.getLogger(__name__)
 
 
-@six.add_metaclass(abc.ABCMeta)
-class TempestPlugin(object):
+class TempestPlugin(object, metaclass=abc.ABCMeta):
     """Provide basic hooks for an external plugin
 
     To provide tempest the necessary information to run the plugin.
diff --git a/tempest/tests/lib/test_decorators.py b/tempest/tests/lib/test_decorators.py
index e3c17e8..fc93f76 100644
--- a/tempest/tests/lib/test_decorators.py
+++ b/tempest/tests/lib/test_decorators.py
@@ -16,7 +16,6 @@
 import abc
 from unittest import mock
 
-import six
 import testtools
 
 from tempest.lib import base as test
@@ -69,8 +68,7 @@
                                condition=True)
 
 
-@six.add_metaclass(abc.ABCMeta)
-class BaseSkipDecoratorTests(object):
+class BaseSkipDecoratorTests(object, metaclass=abc.ABCMeta):
 
     @abc.abstractmethod
     def _test_skip_helper(self, raise_exception=True, expected_to_skip=True,