Bump tox minversion

For c611a16afe
2019-02-10 13:57:44 +01:00 · 2019-02-10 13:57:44 +01:00 · 82b8ec37fc
parent f73fa47b1f
commit 82b8ec37fc
1 changed files with 1 additions and 1 deletions
--- 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 =