diff --git a/requirements.txt b/requirements.txt
index 3ef27e5..ad13f8c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,4 @@
 
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 requests>=2.14.2 # Apache-2.0
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT