diff --git a/shibboleth-appliance.json b/shibboleth-appliance.json
index 13777c1..e3cccf9 100644
--- a/shibboleth-appliance.json
+++ b/shibboleth-appliance.json
@@ -3,7 +3,7 @@
   "description": "Shibboleth appliance ",
   "variables": {
       "profile": "xfs",
-      "disk_size": "8192",
+      "disk_size": "20000",
       "memory": "2048",
       "cpus": "1",
       "guest_os_type": "RedHat_64",