diff --git a/tox.ini b/tox.ini
index 5a94e6a..f5ee477 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-minversion = 1.8
+minversion = 2.0
 envlist = py36,py27,pep8
 skipsdist = True