diff --git a/packages/playground/package.json b/packages/playground/package.json
index ed8d1ace..e467353b 100644
--- a/packages/playground/package.json
+++ b/packages/playground/package.json
@@ -3,6 +3,7 @@
   "version": "0.0.0",
   "description": "Necessary library for all ECMAScript (JavaScript/TypeScript) projects.",
   "author": "S. Ali Mihandoost <ali.mihandoost@gmail.com>",
+  "private": true,
   "type": "module",
   "main": "./dist/main.cjs",
   "module": "./dist/main.mjs",