diff --git a/README.md b/README.md
index 69338942..14f787db 100644
--- a/README.md
+++ b/README.md
@@ -69,6 +69,7 @@ meanTorrent is A Private __BitTorrent Tracker CMS__ with __Multilingual support_
 21. __IRC Announce support [Node-irc](https://github.com/martynsmith/node-irc), when user upload new torrent file, and oper/admin reviewed it, then announce the torrent info to IRC channel.__
 22. Scrape torrents status from owner tracker server, design for `public` CMS mode.
 23. Complete HnR(hit and run) system support.
+24. Oper/admin can send official invitation, but all the invitation has the expired time setting.
 
 #### Chat room feature:
 1. Users name list