diff --git a/tox.ini b/tox.ini
index 1bb9ffb..025cf12 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-minversion = 3.1.1
+minversion = 3.2.0
 envlist = py37,pep8
 ignore_basepython_conflict = True