diff --git a/neutron_taas/db/taas_db.py b/neutron_taas/db/taas_db.py
index d769425..2ba6b74 100755
--- a/neutron_taas/db/taas_db.py
+++ b/neutron_taas/db/taas_db.py
@@ -19,8 +19,8 @@ from sqlalchemy import orm
 from sqlalchemy.orm import exc
 
 from neutron.db import common_db_mixin as base_db
-from neutron.db import model_base
 from neutron import manager
+from neutron_lib.db import model_base
 from neutron_taas.extensions import taas
 from oslo_log import log as logging
 from oslo_utils import uuidutils
diff --git a/neutron_taas/extensions/taas.py b/neutron_taas/extensions/taas.py
index 9edb466..ef7ab36 100644
--- a/neutron_taas/extensions/taas.py
+++ b/neutron_taas/extensions/taas.py
@@ -18,8 +18,8 @@ import abc
 from neutron.api import extensions
 from neutron.api.v2 import attributes as attr
 from neutron.api.v2 import resource_helper
-from neutron.common import exceptions as qexception
 from neutron.services import service_base
+from neutron_lib import exceptions as qexception
 
 from neutron_taas.common import constants
 
diff --git a/neutron_taas/services/taas/service_drivers/taas_rpc.py b/neutron_taas/services/taas/service_drivers/taas_rpc.py
index 351c468..4a375be 100644
--- a/neutron_taas/services/taas/service_drivers/taas_rpc.py
+++ b/neutron_taas/services/taas/service_drivers/taas_rpc.py
@@ -14,8 +14,8 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-from neutron.common import exceptions as n_exc
 from neutron.common import rpc as n_rpc
+from neutron_lib import exceptions as n_exc
 from neutron_taas.common import topics
 from neutron_taas.extensions import taas as taas_ex
 from neutron_taas.services.taas import service_drivers
diff --git a/neutron_taas/services/taas/taas_plugin.py b/neutron_taas/services/taas/taas_plugin.py
index 916e28e..ac52c18 100755
--- a/neutron_taas/services/taas/taas_plugin.py
+++ b/neutron_taas/services/taas/taas_plugin.py
@@ -14,10 +14,10 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-from neutron.common import exceptions as n_exc
 from neutron.db import servicetype_db as st_db
 from neutron.services import provider_configuration as pconf
 from neutron.services import service_base
+from neutron_lib import exceptions as n_exc
 
 from neutron_taas.common import constants
 from neutron_taas.db import taas_db