diff --git a/package.json b/package.json
index 530ada5..87eac37 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "0.2.0",
   "description": "Tool for decoding qrcode",
   "main": "dist/index.js",
+  "module": "dist/index.esm.js",
   "sideEffects": false,
   "scripts": {
     "build": "ts-node -P scripts/tsconfig.json scripts/bundle.ts umd,esm,aio && npm run copy-file",