diff --git a/docs/ROADMAP.md b/docs/ROADMAP.md
index e1f93e9fdc..fdce8c743b 100644
--- a/docs/ROADMAP.md
+++ b/docs/ROADMAP.md
@@ -22,8 +22,11 @@ This document defines the roadmap for TiDB development.
 
 ##### __API__  
 - [x] MySQL protocol server
+- [ ] MySQL X Protocol
 - [ ] PostgreSQL protocol server
 - [ ] JSON support
+- [ ] Document store
+- [ ] Spark connector
 
 
 ##### __Application__