diff --git a/neutron_taas/extensions/taas.py b/neutron_taas/extensions/taas.py
index b6274697..f62cbac0 100644
--- a/neutron_taas/extensions/taas.py
+++ b/neutron_taas/extensions/taas.py
@@ -23,8 +23,6 @@ from neutron.api.v2 import resource_helper
 
 from neutron_taas.common import config
 
-import six
-
 
 config.register()
 
@@ -53,8 +51,7 @@ class Taas(extensions.APIExtensionDescriptor):
         return TaasPluginBase
 
 
-@six.add_metaclass(abc.ABCMeta)
-class TaasPluginBase(service_base.ServicePluginBase):
+class TaasPluginBase(service_base.ServicePluginBase, metaclass=abc.ABCMeta):
 
     def get_plugin_description(self):
         return taas_api_def.DESCRIPTION
diff --git a/neutron_taas/services/taas/agents/extensions/taas.py b/neutron_taas/services/taas/agents/extensions/taas.py
index b7bc78b4..1257c5e6 100644
--- a/neutron_taas/services/taas/agents/extensions/taas.py
+++ b/neutron_taas/services/taas/agents/extensions/taas.py
@@ -14,7 +14,6 @@
 # limitations under the License.
 
 import abc
-import six
 
 from neutron_lib.agent import l2_extension
 
@@ -35,8 +34,7 @@ OPTS = [
 cfg.CONF.register_opts(OPTS)
 
 
-@six.add_metaclass(abc.ABCMeta)
-class TaasAgentDriver(object):
+class TaasAgentDriver(object, metaclass=abc.ABCMeta):
     """Defines stable abstract interface for TaaS Agent Driver."""
 
     @abc.abstractmethod
diff --git a/neutron_taas/services/taas/service_drivers/__init__.py b/neutron_taas/services/taas/service_drivers/__init__.py
index cc0e0928..41d1f0cb 100644
--- a/neutron_taas/services/taas/service_drivers/__init__.py
+++ b/neutron_taas/services/taas/service_drivers/__init__.py
@@ -14,11 +14,8 @@
 
 import abc
 
-import six
 
-
-@six.add_metaclass(abc.ABCMeta)
-class TaasBaseDriver(object):
+class TaasBaseDriver(object, metaclass=abc.ABCMeta):
 
     def __init__(self, service_plugin):
         self.service_plugin = service_plugin