diff --git a/docs/config/doorkeeper.json b/docs/config/doorkeeper.json
index 7b79706..2757a8c 100644
--- a/docs/config/doorkeeper.json
+++ b/docs/config/doorkeeper.json
@@ -139,10 +139,6 @@
     {
       "id": "maebashirb",
       "name": "Maebashi.rb"
-    },
-    {
-      "id": "rubytokai",
-      "name": "Ruby東海"
     }
   ]
 }