diff --git a/README.md b/README.md
index fd8ed76..58e4f20 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,14 @@
 $ npm install --save fontmin
 ```
 
+### Notice
+
+**fontmin v2.x only support ES Modules, and run on Node v16+.**
+
+If you need to use CommonJS version, please install `fontmin v1.x`:
+
+> npm install --save fontmin@1
+
 ## Usage
 
 ```js
diff --git a/package.json b/package.json
index 2f06e97..371e43b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fontmin",
-  "version": "1.1.0",
+  "version": "2.0.0",
   "description": "Minify font seamlessly, font subsetter, webfont (eot, woff, svg) converter.",
   "type": "module",
   "main": "index.js",
@@ -32,7 +32,7 @@
   "license": "MIT",
   "repository": "ecomfe/fontmin",
   "engines": {
-    "node": ">=18"
+    "node": ">=16"
   },
   "bin": {
     "fontmin": "cli.js"