diff --git a/tox.ini b/tox.ini
index 16c323e799..67cf453f89 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 minversion = 1.6
 skipsdist = True
-envlist = py35,py27,pep8,pypy
+envlist = py36,py35,py27,pep8,pypy
 
 [testenv]
 usedevelop=True