diff --git a/package.json b/package.json
index ab7020e..c86dde7 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "0.4.2",
   "description": "Bulma theme for Oruga",
   "license": "MIT",
+  "type": "module",
   "main": "dist/bulma.js",
   "module": "dist/bulma.mjs",
   "unpkg": "dist/bulma.min.js",