diff --git a/stack/slapos.cfg b/stack/slapos.cfg
index 0dcf670f79cbd7dfbc3f1ef737171c757992262d..75c6d4cf6a2e959703f2f759d0d1984867a2abf6 100644
--- a/stack/slapos.cfg
+++ b/stack/slapos.cfg
@@ -100,7 +100,7 @@ eggs =
 
 [versions]
 # Use SlapOS patched zc.buildout
-zc.buildout = 1.7.1-dev-SlapOS-003
+zc.buildout = 1.7.1-dev-SlapOS-004
 # Use SlapOS patched zc.recipe.egg (zc.recipe.egg 2.x is for Buildout 2)
 zc.recipe.egg = 1.3.2nxd001
 # Use own version of h.r.download to be able to open xz-like archives