add emf validation pre-req
diff --git a/releng/maps/build.cfg b/releng/maps/build.cfg
index c3f46c4..332f86a 100644
--- a/releng/maps/build.cfg
+++ b/releng/maps/build.cfg
@@ -1,4 +1,4 @@
-builderVersion=v200909300447
+builderVersion=v200909300528
 #builderVersion=v200909300318
 
 eclipse.builder=org.eclipse.releng.basebuilder