diff --git a/scripts_archlinux/00_prepare.sh b/scripts_archlinux/00_prepare.sh
index 3abfc42..7d5f66b 100755
--- a/scripts_archlinux/00_prepare.sh
+++ b/scripts_archlinux/00_prepare.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-ISO_VERSION=2014.07.03
+ISO_VERSION=`date +%Y.%m`.01
 
 mkdir -p $CACHEDIR