diff --git a/tox.ini b/tox.ini
index 7a525cd68..63be5d510 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.1
-envlist = py35,py36,py27,pep8
+envlist = pep8,py37,py36,py35,py27
 skipsdist = True
 ignore_basepython_conflict = True