diff --git a/requirements.txt b/requirements.txt
index e16e693..c98776d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 cliff!=2.9.0,>=2.8.0 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 Babel!=2.4.0,>=2.3.4 # BSD
 oslo.i18n>=3.15.3 # Apache-2.0
 oslo.log>=3.30.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 9dffe04..508c72f 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,5 +7,5 @@ mox>=0.5.3 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 testrepository>=0.0.18 # Apache-2.0/BSD
-testtools>=1.4.0 # MIT
+testtools>=2.2.0 # MIT
 coverage!=4.4,>=4.0 # Apache-2.0