diff --git a/tox.ini b/tox.ini
index a2aa5f8e..4eb6ab57 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,5 +5,7 @@ envlist = py26,py27,pypy
 deps = nose
        mock
        ccm
+       unittest2
+       pip
 commands = {envpython} setup.py build_ext --inplace
            nosetests tests/unit/