diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc363b8..aaf0b57 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# [v1.4.0-beta.2](https://github.com/TomokiMiyauci/equal/compare/v1.4.0-beta.1...v1.4.0-beta.2) (2021-05-31)
+
+## ✨ New Features
+- [`dfb37b4`](https://github.com/TomokiMiyauci/equal/commit/dfb37b4)   Add equality of ArrayBuffer (Issues: [`#20`](https://github.com/TomokiMiyauci/equal/issues/20))
+
 # [v1.4.0-beta.1](https://github.com/TomokiMiyauci/equal/compare/v1.3.0...v1.4.0-beta.1) (2021-05-31)
 
 ## ✨ New Features
diff --git a/package.json b/package.json
index 1a8449d..50216dd 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "lauqe",
   "description": "(=equal) TypeScript-first deep equivalence comparison between two values",
-  "version": "1.4.0-beta.1",
+  "version": "1.4.0-beta.2",
   "main": "dist/index.cjs.js",
   "module": "dist/index.es.js",
   "types": "dist/index.es.d.ts",