diff --git a/dragonflow/tests/unit/test_mech_driver.py b/dragonflow/tests/unit/test_mech_driver.py
index 56f2e4a3c..a90ea923c 100644
--- a/dragonflow/tests/unit/test_mech_driver.py
+++ b/dragonflow/tests/unit/test_mech_driver.py
@@ -374,6 +374,7 @@ class TestDFMechDriver(DFMechanismDriverTestCase):
                 self.nb_api.update.assert_called_once()
                 lport = self.nb_api.update.call_args_list[0][0][0]
                 self.assertIsInstance(lport, l2.LogicalPort)
+                self.assertEqual(port['revision_number'], lport.version)
 
     def test_delete_network(self):
         network, _lswitch = self._test_create_network_revision()
diff --git a/lower-constraints.txt b/lower-constraints.txt
index c143db4e6..5d18e6f38 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -63,7 +63,7 @@ munch==2.2.0
 netaddr==0.7.18
 netifaces==0.10.6
 neutron-lib==1.18.0
-neutron==13.0.0.0b1
+neutron==13.0.0.0b2
 openstackdocstheme==1.18.1
 openstacksdk==0.13.0
 os-client-config==1.29.0
@@ -138,7 +138,7 @@ snowballstemmer==1.2.1
 Sphinx==1.6.5
 sphinxcontrib-websupport==1.0.1
 sqlalchemy-migrate==0.11.0
-SQLAlchemy==1.0.10
+SQLAlchemy==1.2.0
 sqlparse==0.2.4
 statsd==3.2.2
 stestr==2.0.0
diff --git a/requirements.txt b/requirements.txt
index f242bb9bf..332de124a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ kazoo>=2.2 # Apache-2.0
 ovs>=2.8.0 # Apache-2.0
 pyzmq>=14.3.1 # LGPL+BSD
 ryu>=4.24 # Apache-2.0
-SQLAlchemy!=1.1.5,!=1.1.6,!=1.1.7,!=1.1.8,>=1.0.10 # MIT
+SQLAlchemy>=1.2.0 # MIT
 alembic>=0.8.10 # MIT
 neutron-lib>=1.18.0 # Apache-2.0
 oslo.config>=5.2.0 # Apache-2.0