diff --git a/setup.py b/setup.py
index 4f0aabfd..a686f03d 100644
--- a/setup.py
+++ b/setup.py
@@ -54,7 +54,7 @@ setup(
     packages=find_packages(exclude=['tests']),
 
     install_requires=[
-        'six',
+        'six>=1.10.0',
         'blinker',
         'graphql-core==0.1a2',
         'graphql-relay==0.2.0'