diff --git a/tox.ini b/tox.ini
index bd2a2b8b6..23f157fd9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 distribute = False
 envlist = py3,pep8
-minversion = 3.18.0
+minversion = 4.11.0
 # Automatic envs (pyXX) will only use the python version appropriate to that
 # env and ignore basepython inherited from [testenv] if we set
 # ignore_basepython_conflict.
@@ -60,7 +60,6 @@ commands =
 
 [testenv:functional]
 setenv =
-  {[testenv]setenv}
   OS_TEST_PATH = ./manilaclient/tests/functional
   OS_SHARE_API_VERSION = 2
 passenv = OS_*