diff --git a/CloudronManifest.json b/CloudronManifest.json
index 6e684c8..50423f0 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -33,5 +33,7 @@
   ],
   "documentationUrl": "https://cloudron.io/documentation/apps/mastodon/",
   "postInstallMessage": "file://POSTINSTALL.md",
-  "optionalSso": true
+  "optionalSso": true,
+  "minBoxVersion": "5.3.0",
+  "forumUrl": "https://forum.cloudron.io/category/41/mastodon"
 }