diff --git a/package.json b/package.json
index e3a40da..b8b3edb 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
   "license": "MIT",
   "version": "3.2.0",
   "main": "index.js",
+  "type": "commonjs",
   "types": "types/index.d.ts",
   "scripts": {
     "lint": "eslint .",