diff --git a/package.json b/package.json
index ab82673..875875d 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
     }
   ],
   "main": "index.js",
+  "type": "commonjs",
   "types": "types/index.d.ts",
   "scripts": {
     "test": "npm run test:unit && npm run test:typescript",