diff --git a/tox.ini b/tox.ini
index 214c4c4..1951352 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,7 +3,7 @@ envlist = py26,py27,py32,py33
 
 [testenv]
 deps=
-    nose
+    pytest
     six
 
-commands=nosetests -w test
+commands=py.test test