diff --git a/tox.ini b/tox.ini
index dfbc875..c40a10e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py33
+envlist = py27,py33,py34
 [testenv]
 deps=pytest
 commands=py.test tests/