diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0d7b229..06ee406 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,13 +48,13 @@ jobs:
           node-version: 22
 
       - name: Lint Markdown
-        run: npx --yes markdownlint-cli2@0.23.3 "README.md" "readme_zn.md"
+        run: npx --yes markdownlint-cli2@0.23.3 "README.md" "README.zh-CN.md"
 
       - name: Validate repository standards
         run: |
           set -euo pipefail
           test -s README.md
-          test -s readme_zn.md
+          test -s README.zh-CN.md
           test -s AGENTS.md
           test -s LICENSE
           python3 -c "import json; json.load(open('.releaserc.json'))"
diff --git a/README.md b/README.md
index ceaa810..8e65334 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # litegrip-python
 
-[English](README.md) | [简体中文](readme_zn.md)
+[English](README.md) | [简体中文](README.zh-CN.md)
 
 Python SDK for the **LiteGrip lightweight robotic gripper series**, and the primary public
 interface to it. This is the reference: what each interface is, and how to use it.
diff --git a/readme_zn.md b/README.zh-CN.md
similarity index 99%
rename from readme_zn.md
rename to README.zh-CN.md
index 154ec6c..3785754 100644
--- a/readme_zn.md
+++ b/README.zh-CN.md
@@ -1,6 +1,6 @@
 # litegrip-python
 
-[English](README.md) | [简体中文](readme_zn.md)
+[English](README.md) | [简体中文](README.zh-CN.md)
 
 **LiteGrip 轻量机械爪系列**的 Python SDK，也是它主要的公开接口。本文是一份接口参考：
 每个接口是什么，以及怎么用。