diff --git a/lower-constraints.txt b/lower-constraints.txt
index 7eb982743..68c989976 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -52,7 +52,7 @@ msgpack-python==0.4.0
 munch==2.1.0
 netaddr==0.7.18
 netifaces==0.10.4
-neutron-lib==1.18.0
+neutron-lib==1.20.0
 neutron==12.0.0
 openstackdocstheme==1.18.1
 openstacksdk==0.11.2
diff --git a/neutron_lbaas/db/loadbalancer/loadbalancer_dbv2.py b/neutron_lbaas/db/loadbalancer/loadbalancer_dbv2.py
index 244af4f5e..5cd090996 100644
--- a/neutron_lbaas/db/loadbalancer/loadbalancer_dbv2.py
+++ b/neutron_lbaas/db/loadbalancer/loadbalancer_dbv2.py
@@ -23,6 +23,7 @@ from neutron_lib.callbacks import registry
 from neutron_lib.callbacks import resources
 from neutron_lib import constants as n_const
 from neutron_lib.db import api as db_api
+from neutron_lib.db import model_query
 from neutron_lib import exceptions as n_exc
 from neutron_lib.plugins import constants as pg_const
 from neutron_lib.plugins import directory
@@ -68,7 +69,7 @@ class LoadBalancerPluginDbv2(base_db.CommonDbMixin,
                 # To lock the instance for update, return a single
                 # instance, instead of an instance with LEFT OUTER
                 # JOINs that do not work in PostgreSQL
-                query = self._model_query(context, model).options(
+                query = model_query.query_with_hooks(context, model).options(
                     lazyload('*')
                 ).filter(
                     model.id == id).with_lockmode('update')
@@ -252,7 +253,7 @@ class LoadBalancerPluginDbv2(base_db.CommonDbMixin,
         with context.session.begin(subtransactions=True):
             if issubclass(model, models.LoadBalancer):
                 try:
-                    model_db = (self._model_query(context, model).
+                    model_db = (model_query.query_with_hooks(context, model).
                                 filter(model.id == id).
                                 options(orm.noload('vip_port')).
                                 one())
diff --git a/requirements.txt b/requirements.txt
index 32131a8c0..12fbab9cf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ pbr!=2.1.0,>=2.0.0 # Apache-2.0
 eventlet!=0.18.3,!=0.20.1,>=0.18.2 # MIT
 requests>=2.14.2 # Apache-2.0
 netaddr>=0.7.18 # BSD
-neutron-lib>=1.18.0 # Apache-2.0
+neutron-lib>=1.20.0 # Apache-2.0
 neutron>=12.0.0 # Apache-2.0
 SQLAlchemy!=1.1.5,!=1.1.6,!=1.1.7,!=1.1.8,>=1.0.10 # MIT
 alembic>=0.8.10 # MIT