diff --git a/requirements.txt b/requirements.txt
index 961b28556e..e541aeb293 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ oslo.utils>=3.31.0 # Apache-2.0
 oslo.concurrency>=3.20.0 # Apache-2.0
 PyMySQL>=0.7.6 # MIT License
 Babel!=2.4.0,>=2.3.4 # BSD
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 stevedore>=1.20.0 # Apache-2.0
 oslo.messaging>=5.29.0 # Apache-2.0
 osprofiler>=1.4.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 430c905dda..a705e0bf01 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -18,7 +18,7 @@ proboscis>=1.2.5.3 # Apache-2.0
 python-troveclient>=2.2.0 # Apache-2.0
 mock>=2.0.0 # BSD
 mox3>=0.20.0 # Apache-2.0
-testtools>=1.4.0 # MIT
+testtools>=2.2.0 # MIT
 testrepository>=0.0.18 # Apache-2.0/BSD
 pymongo!=3.1,>=3.0.2 # Apache-2.0
 redis>=2.10.0 # MIT