diff --git a/ct/cockpit.sh b/ct/cockpit.sh
index bcd255089..6ca2f1598 100644
--- a/ct/cockpit.sh
+++ b/ct/cockpit.sh
@@ -11,7 +11,7 @@ var_cpu="${var_cpu:-2}"
 var_ram="${var_ram:-1024}"
 var_disk="${var_disk:-4}"
 var_os="${var_os:-debian}"
-var_version="${var_version:-13}"
+var_version="${var_version:-12}"
 var_unprivileged="${var_unprivileged:-1}"
 
 header_info "$APP"
diff --git a/frontend/public/json/cockpit.json b/frontend/public/json/cockpit.json
index e313dac56..b678a1a7f 100644
--- a/frontend/public/json/cockpit.json
+++ b/frontend/public/json/cockpit.json
@@ -23,7 +23,7 @@
         "ram": 1024,
         "hdd": 4,
         "os": "debian",
-        "version": "13"
+        "version": "12"
       }
     }
   ],