Bump tox minversion

blueyed · blueyed · commit 82b8ec37fc53 · 2019-02-10T13:57:49.000+01:00
For tox-dev/tox@c611a16
diff --git a/tox.ini b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 isolated_build = True
-minversion = 3.3
+minversion = 3.5.3
 distshare = {homedir}/.tox/distshare
 # make sure to update environment list in travis.yml and appveyor.yml
 envlist =
