diff --git a/package.json b/package.json
index c55cbf0..d9570c4 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,7 @@
   "private": false,
   "version": "0.10.0",
   "main": "./index.js",
+  "type": "commonjs",
   "sideEffects": false,
   "dependencies": {
     "@adeira/js": "^2.1.0",