Use the new version of the b3 aggregator

Change-Id: I4f8042d181154aae7e03f65ba92a66f535a6b278
diff --git a/devtools/org.eclipse.emf.parsley.oomph/EMFParsley.setup b/devtools/org.eclipse.emf.parsley.oomph/EMFParsley.setup
index ab56e00..cb8154c 100644
--- a/devtools/org.eclipse.emf.parsley.oomph/EMFParsley.setup
+++ b/devtools/org.eclipse.emf.parsley.oomph/EMFParsley.setup
@@ -237,7 +237,7 @@
       <requirement
           name="org.eclipse.b3.aggregator.editor.feature.feature.group"/>
       <repository
-          url="http://download.eclipse.org/modeling/emft/b3/updates-4.3"/>
+          url="http://download.eclipse.org/modeling/emft/b3/updates-4.4"/>
     </setupTask>
     <setupTask
         xsi:type="setup.p2:P2Task"