diff --git a/lower-constraints.txt b/lower-constraints.txt
index 55a109a2337..b253083b074 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -17,6 +17,7 @@ ddt==1.0.1
 debtcollector==1.2.0
 decorator==3.4.0
 deprecation==1.0
+doc8==0.6.0
 docutils==0.11
 dogpile.cache==0.6.2
 dulwich==0.15.0
@@ -86,7 +87,7 @@ oslo.versionedobjects==1.35.1
 oslotest==3.2.0
 osprofiler==2.3.0
 ovs==2.8.0
-ovsdbapp==0.9.1
+ovsdbapp==0.17.0
 Paste==2.0.2
 PasteDeploy==1.5.0
 pbr==4.0.0
@@ -137,11 +138,12 @@ statsd==3.2.1
 stestr==1.0.0
 stevedore==1.20.0
 Tempita==0.5.2
-tenacity==3.2.1
+tenacity==4.4.0
 testrepository==0.0.18
 testresources==2.0.0
 testscenarios==0.4
 testtools==2.2.0
+tooz==1.58.0
 tinyrpc==0.6
 traceback2==1.4.0
 unittest2==1.1.0
diff --git a/requirements.txt b/requirements.txt
index 9c34502270a..8eab199f9e4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ netaddr>=0.7.18 # BSD
 netifaces>=0.10.4 # MIT
 neutron-lib>=1.29.1 # Apache-2.0
 python-neutronclient>=6.7.0 # Apache-2.0
-tenacity>=3.2.1 # Apache-2.0
+tenacity>=4.4.0 # Apache-2.0
 SQLAlchemy>=1.2.0 # MIT
 WebOb>=1.8.2 # MIT
 keystoneauth1>=3.4.0 # Apache-2.0
@@ -46,7 +46,7 @@ oslo.versionedobjects>=1.35.1 # Apache-2.0
 osprofiler>=2.3.0 # Apache-2.0
 os-ken >= 0.3.0 # Apache-2.0
 ovs>=2.8.0 # Apache-2.0
-ovsdbapp>=0.9.1 # Apache-2.0
+ovsdbapp>=0.17.0 # Apache-2.0
 psutil>=3.2.2 # BSD
 pyroute2>=0.5.3;sys_platform!='win32' # Apache-2.0 (+ dual licensed GPL2)
 
@@ -55,3 +55,5 @@ openstacksdk>=0.31.2 # Apache-2.0
 python-designateclient>=2.7.0 # Apache-2.0
 os-xenapi>=0.3.1 # Apache-2.0
 os-vif>=1.15.1 # Apache-2.0
+futurist>=1.2.0 # Apache-2.0
+tooz>=1.58.0 # Apache-2.0