diff --git a/site.mk b/site.mk
index 2de417b41d9d77b147fd63c9f45baec44c2b3679..7c0b5c4f6780928cdacbe3136f6b3f2dadc6c008 100644
--- a/site.mk
+++ b/site.mk
@@ -47,7 +47,7 @@ DEFAULT_BUILD_DATE := $(shell date '+%Y-%m-%d')
 
 BUILD_DATE ?= $(DEFAULT_BUILD_DATE)
 
-DEFAULT_GLUON_RELEASE := 1.5+$(BUILD_DATE)-g.$(shell git -C $(GLUON_SITEDIR)/gluon log --pretty=format:'%h' -n 1)-s.$(shell git -C $(GLUON_SITEDIR) log --pretty=format:'%h' -n 1)
+DEFAULT_GLUON_RELEASE := 1.6+$(BUILD_DATE)-g.$(shell git -C $(GLUON_SITEDIR)/gluon log --pretty=format:'%h' -n 1)-s.$(shell git -C $(GLUON_SITEDIR) log --pretty=format:'%h' -n 1)
 
 GLUON_LANGS := de en