diff --git a/contents.json b/contents.json
index dad249eb..e65c621a 100644
--- a/contents.json
+++ b/contents.json
@@ -239,7 +239,7 @@
       "title": "Mastodon",
       "id": "mastodon",
       "parent": "social",
-      "description": "https://mastodon.social"
+      "description": "https://joinmastodon.org"
     },
     {
       "title": "Tasks",
@@ -17869,4 +17869,4 @@
       "stars": 65
     }
   ]
-}
\ No newline at end of file
+}