diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7d5013a..7ec6f08 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## v0.0.1-R4
+
+### Bug Fix
+
+- Change of package name back to `@unlock-music` namespace.
+
 ## v0.0.1-R3
 
 ### Bug Fix
diff --git a/README.md b/README.md
index 3450108..33a9088 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Joox 加密处理库。
 ## 安装 & 使用 (Install & Usage)
 
 ```sh
-npm i --save @unlock-music-gh/joox-crypto
+npm i --save @unlock-music/joox-crypto
 ```
 
 ```js
diff --git a/package.json b/package.json
index 2224770..f2a1918 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
-  "name": "@unlock-music-gh/joox-crypto",
+  "name": "@unlock-music/joox-crypto",
   "type": "commonjs",
-  "version": "0.0.1-R3",
+  "version": "0.0.1-R4",
   "description": "Crypto library to decrypt joox encrypted music files.",
   "main": "src/index.js",
   "types": "src/index.d.ts",