diff --git a/requirements.txt b/requirements.txt
index f21d21aff..98f3bf3c5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,6 +14,6 @@ PrettyTable<0.8,>=0.7.1 # BSD
 requests>=2.14.2 # Apache-2.0
 simplejson>=3.5.1 # MIT
 Babel!=2.4.0,>=2.3.4 # BSD
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 python-keystoneclient>=3.8.0 # Apache-2.0
 debtcollector>=1.2.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index a719cd355..b4101d2bb 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -14,6 +14,6 @@ oslotest>=1.10.0 # Apache-2.0
 sphinx>=1.6.2 # BSD
 tempest>=17.1.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
-testtools>=1.4.0 # MIT
+testtools>=2.2.0 # MIT
 python-openstackclient>=3.12.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0