diff --git a/package.json b/package.json
index 0e13b20..2acba9a 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
   },
   "license": "MIT",
   "author": "Wijnand Modderman-Lenstra",
+  "type": "module",
   "main": "dist/index.js",
   "module": "dist/index.mjs",
   "types": "dist/index.d.ts",