diff --git a/apps/backend/package.json b/apps/backend/package.json
index f0e24f247..75a8043e7 100644
--- a/apps/backend/package.json
+++ b/apps/backend/package.json
@@ -3,6 +3,7 @@
   "version": "2.8.83",
   "repository": "https://github.com/stack-auth/stack-auth",
   "private": true,
+  "type": "module",
   "scripts": {
     "clean": "rimraf src/generated && rimraf .next && rimraf node_modules",
     "typecheck": "tsc --noEmit",