diff --git a/dev/buildout.cfg b/dev/buildout.cfg
index d03bb79..a87d01d 100644
--- a/dev/buildout.cfg
+++ b/dev/buildout.cfg
@@ -2,8 +2,8 @@
 extensions = mr.developer buildout.dumppickedversions
 unzip = true
 parts = instance omelette zopepy roadrunner
-extends = 
-    http://dist.plone.org/release/3.3rc2/versions.cfg
+extends =
+    http://dist.plone.org/release/3.3rc3/versions.cfg
     http://good-py.appspot.com/release/plone.app.discussion/1.0a1
 versions = versions
 sources = sources
@@ -33,7 +33,7 @@ eggs =
     Products.PdbDebugMode
     plone.app.discussion
     collective.autopermission
-    
+
 zcml =
     plone.reload