diff --git a/package.json b/package.json
index a12e1a1..27a23c9 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "main": "dist/system.mjs",
   "module": "dist/system.mjs",
   "types": "dist/system.d.ts",
+  "deprecated": true,
   "scripts": {
     "watch": "rollup -c rollup.config.mjs -w",
     "dev": "cross-env NODE_ENV=development nodemon --delay 2.5 -e js,cjs,mjs --exec node dist/app.mjs",