diff --git a/tox.ini b/tox.ini
index 970f415..65960b0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = pep8,py35,py27,pip-check-reqs
+envlist = pep8,py36,py27,pip-check-reqs
 minversion = 2.3.1
 skipsdist = True