diff --git a/requirements.txt b/requirements.txt
index ace745f..9650ca7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ jsonpatch>=1.16 # BSD
 jsonschema<3.0.0,>=2.6.0 # MIT
 pyOpenSSL>=16.2.0 # Apache-2.0
 # Required by openstack.common libraries
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 
 oslo.db>=4.27.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 48f9298..0aa523c 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -19,7 +19,7 @@ requests>=2.14.2 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
 testresources>=2.0.0 # Apache-2.0/BSD
 testscenarios>=0.4 # Apache-2.0/BSD
-testtools>=1.4.0 # MIT
+testtools>=2.2.0 # MIT
 psutil>=3.2.2 # BSD
 oslotest>=1.10.0 # Apache-2.0
 os-testr>=1.0.0 # Apache-2.0