diff --git a/README.md b/README.md
index 5a39ac4..2419139 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,6 @@
 # simple-pinyin
 
-[![npm version](https://badge.fury.io/js/simple-pinyin.svg)](https://badge.fury.io/js/simple-pinyin)
-[![Bower version](https://badge.fury.io/bo/simple-pinyin.svg)](https://badge.fury.io/bo/simple-pinyin)
-[![license](https://img.shields.io/badge/license-MIT)](https://github.com/xuqingkuang/simple-pinyin/blob/master/LICENSE) [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://github.com/xuqingkuang/simple-pinyin/pulls) [![Actions Status](https://github.com/xuqingkuang/simple-pinyin/workflows/build/badge.svg?branch=master)](https://github.com/xuqingkuang/simple-pinyin/actions) [![Codecov](https://img.shields.io/codecov/c/github/xuqingkuang/simple-pinyin)](https://codecov.io/gh/xuqingkuang/simple-pinyin)
+[![npm version](https://badge.fury.io/js/simple-pinyin.svg)](https://badge.fury.io/js/simple-pinyin) [![license](https://img.shields.io/badge/license-MIT)](https://github.com/xuqingkuang/simple-pinyin/blob/master/LICENSE) [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://github.com/xuqingkuang/simple-pinyin/pulls) [![Actions Status](https://github.com/xuqingkuang/simple-pinyin/workflows/build/badge.svg?branch=master)](https://github.com/xuqingkuang/simple-pinyin/actions) [![Codecov](https://img.shields.io/codecov/c/github/xuqingkuang/simple-pinyin)](https://codecov.io/gh/xuqingkuang/simple-pinyin)
 
 一个简单的汉字转换到拼音模块，目前覆盖了 401 个常用音和和 6765 个常用汉字，可以同时应用于 NodeJS
 和浏览器环境。
diff --git a/bower.json b/bower.json
deleted file mode 100644
index ae7910b..0000000
--- a/bower.json
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-  "name": "simple-pinyin",
-  "version": "3.1.0",
-  "authors": [
-    "XQ Kuang <x@kxq.io>"
-  ],
-  "license": "MIT",
-  "main": "./dist/index.min.js",
-  "moduleType": [
-    "amd",
-    "globals",
-    "node"
-  ],
-  "ignore": [
-    ".*",
-    "node_modules",
-    "src",
-    "coverage",
-    "tsconfig.json",
-    "tslint.json",
-    "webpack.config.js",
-    "yarn.lock"
-  ]
-}
diff --git a/package.json b/package.json
index 4505924..b7b0d30 100644
--- a/package.json
+++ b/package.json
@@ -22,8 +22,8 @@
     "coverage": "nyc -r lcov -r text ava"
   },
   "files": [
-    "dist/index.min.js",
-    "dist/index.min.js.map",
+    "dist/index.esm.js",
+    "dist/index.umd.js",
     "README.md",
     "LICENESE",
     "bower.json",