diff --git a/tox.ini b/tox.ini
index e8a2e76..e0594bc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-minversion = 3.1
+minversion = 3.2.0
 envlist = py37,pep8
 basepython = python3
 ignore_basepython_conflict = true