diff --git a/tox.ini b/tox.ini
index 6d64448..2964463 100755
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py33,py34
+envlist = py27,py33,py34,py35
 
 [testenv]
 deps =
@@ -11,6 +11,7 @@ commands =
 deps =
     argparse
     unittest2
+    ordereddict
     configparser
     {[testenv]deps}