diff --git a/requirements.txt b/requirements.txt
index 422b4a015b..484c4548a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,4 @@ python-keystoneclient>=0.9.0
 python-novaclient>=2.17.0
 python-cinderclient>=1.0.6
 requests>=1.1
-six>=1.6.0
+six>=1.7.0