diff --git a/tox.ini b/tox.ini
index 54b22f46a..12b033e2e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,9 @@
 [tox]
 envlist = py26, py27, py32, py33
+skipsdist=True
 [testenv]
+usedevelop=True
 commands =
-    {envpython} setup.py install
     {envpython} tests/test.py
+
+deps = -r{toxinidir}/requirements.txt