diff --git a/README.md b/README.md
index 05de5c7..3f44c6c 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # TPLV
 
-> Nano(~170b), High performance string template library, based on ES6 String template syntax.
+> Nano(~170 bytes), High performance string template library, based on ES6 String template syntax.
 
 [![npm Version](https://img.shields.io/npm/v/tplv.svg)](https://www.npmjs.com/package/tplv)
 [![Build Status](https://github.com/hustcc/tplv/workflows/build/badge.svg)](https://github.com/hustcc/tplv/actions)
@@ -68,10 +68,9 @@ Run performance test with [rendering-test](https://aui.github.io/art-template/re
 The core code and principles are as follows:
 
 ```ts
-
-function render(template: string, data: object): string {
+function render(template, data) {
   const ks = Object.keys(data);
-  const vs = ks.map((k: any) => data[k]);
+  const vs = ks.map((k) => data[k]);
 
   const t = `return \`${template}\``;
   const f = new Function(...ks, t);
diff --git a/package.json b/package.json
index 8ff757b..3d8970c 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,11 @@
 {
   "name": "tplv",
   "version": "1.0.0",
-  "description": "Nano(~170), high performance string template library, based on ES6 String template syntax.",
+  "description": "Nano(~170 bytes), high performance string template library, based on ES6 String template syntax.",
   "license": "MIT",
   "main": "lib/index.js",
   "module": "esm/index.js",
-  "browser": "dist/tplv.min.js",
+  "unpkg": "dist/tplv.min.js",
   "types": "lib/index.d.ts",
   "files": [
     "lib",
diff --git a/rollup.config.js b/rollup.config.js
index 19d6071..607d9c6 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -9,7 +9,7 @@ module.exports = [{
     file: 'dist/tplv.min.js',
     name: 'tplv',
     format: 'umd',
-    sourcemap: true,
+    sourcemap: false,
   },
   plugins: [
     resolve(),
diff --git a/tsconfig.json b/tsconfig.json
index d61bc11..f5d8a43 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -7,13 +7,12 @@
     "moduleResolution": "node",
     "experimentalDecorators": true,
     "declaration": true,
-    "sourceMap": true,
+    "sourceMap": false,
     "allowSyntheticDefaultImports": true,
     "esModuleInterop": true,
     "pretty": true,
     "lib": ["dom", "esnext"],
     "skipLibCheck": true,
-    "sourceRoot": "src",
     "baseUrl": "src"
   },
   "include": ["src/**/*"],