diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 3e05eeedd9..e7712e2bf9 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -1,2 +1,2 @@
 # This should match the owning team set up in https://github.com/orgs/opensearch-project/teams
-*   @heemin32 @navneet1v @VijayanB @vamshin @jmazanec15 @naveentatikonda @junqiu-lei @martin-gaievski @sean-zheng-amazon @model-collapse @zane-neo @vibrantvarun @zhichao-aws @yuye-aws @minalsha @bzhangam
+*   @heemin32 @navneet1v @VijayanB @vamshin @jmazanec15 @naveentatikonda @junqiu-lei @martin-gaievski @sean-zheng-amazon @model-collapse @zane-neo @vibrantvarun @zhichao-aws @yuye-aws @minalsha @bzhangam @chishui
diff --git a/MAINTAINERS.md b/MAINTAINERS.md
index 4ce313fae8..0021b3ec9e 100644
--- a/MAINTAINERS.md
+++ b/MAINTAINERS.md
@@ -22,7 +22,7 @@ This document contains a list of maintainers in this repo. See [opensearch-proje
 | Yuye Zhu                | [yuye-aws](https://github.com/yuye-aws)                   | Amazon      |
 | Minal Shah              | [minalsha](https://github.com/minalsha)                   | Amazon      |
 | Bo Zhang                | [bzhangam](https://github.com/bzhangam)                   | Amazon      |
-
+| Liyun Xiu               | [chishui](https://github.com/chishui)                     | Amazon      |
 
 ## Emeritus