diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 771eb1c63eda..01cf7058a069 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -92,6 +92,7 @@ We do encourage everyone to work anything they are interested in.
 - [Matthew Barrett](https://github.com/mbaret): @mbaret
 - [Arnaud Bergeron](https://github.com/abergeron): @abergeron
 - [Matthew Brookhart](https://github.com/mbrookhart): @mbrookhart
+- [Yaxing Cai](https://github.com/cyx-6): @cyx-6
 - [Liangfu Chen](https://github.com/liangfu): @liangfu
 - [Tianqi Chen](https://github.com/tqchen): @tqchen
 - [Zhi Chen](https://github.com/zhiics): @zhiics