diff --git a/setup.py b/setup.py
index a9655b52..0b53d3a2 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@
 
 install_reqs = [
     'requests >= 2.16.2',
-    'six >= 1.3.0',
+    'six >= 1.12.0',
 ]
 
 setup_requires = [