diff --git a/pydev-plone4/buildout.cfg b/pydev-plone4/buildout.cfg
index 9e63fbd..dc1ff85 100644
--- a/pydev-plone4/buildout.cfg
+++ b/pydev-plone4/buildout.cfg
@@ -21,13 +21,13 @@ packages-under-test = plone.app.discussion
 # Change the number here to change the version of Plone being used
 extends = 
     http://download.zope.org/Zope2/index/2.12.1/versions.cfg
-    http://dist.plone.org/release/4.0a2/versions.cfg
+    http://dist.plone.org/release/4.0a4/versions.cfg
 versions = versions
 
 # Add additional egg download sources here. dist.plone.org contains archives
 # of Plone packages.
 find-links =
-    http://dist.plone.org/release/4.0a2
+    http://dist.plone.org/release/4.0a4
     http://dist.plone.org/thirdparty
 
 # Add additional eggs here
@@ -45,8 +45,7 @@ develop =
 
 [versions]
 plone.theme = 1.2
-plone.app.z3cform = 0.4.6
-plone.z3cform = 0.5.5
+zope.schema = 3.6.0
 
 # Use this section to download additional old-style products.
 # List any number of URLs for product tarballs under URLs (separate