diff --git a/tox.ini b/tox.ini
index c92bf77a1..1a48b44bf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,4 +1,8 @@
 [tox]
-envlist = py26,py27
+envlist = py26, py27, py27-tablib-dev
+
 [testenv]
 commands=python {toxinidir}/tests/manage.py test core
+
+[testenv:py27-tablib-dev]
+deps = -egit+https://github.com/kennethreitz/tablib.git#egg=tablib