1 files changed, 8 insertions, 2 deletions
diff --git a/tox.ini b/tox.ini
index 37ce2d1..3244c1e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,15 +1,21 @@
 [tox]
-envlist = pep8,py36,py27,py35,py34,pypy
+envlist = cs,py36,py27,py35,py34,pypy
 
 [testenv]
 commands =
     /bin/bash -c 'pytest _test/test_*.py'
 deps =
     pytest
-    flake8==3.3.0
+    flake8==2.5.5
     ruamel.std.pathlib
 
+[testenv:cs]
+basepython = python3.6
+commands =
+    flake8  --exclude .tox,jabsy,jinja2,base,cmd,convert{posargs}
+
 [testenv:pep8]
+basepython = python3.6
 commands =
     flake8  --exclude .tox,jabsy,jinja2,base,cmd,convert{posargs}