diff --git a/package.json b/package.json
index abf875a..c0b238c 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "2.0.0",
   "description": "different modules for libsemaphore",
   "main": "index.js",
+  "private": true,
   "directories": {
     "doc": "docs"
   },
diff --git a/packages/types/package.json b/packages/types/package.json
index 5c1d004..56e813e 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -3,6 +3,7 @@
   "version": "1.0.0",
   "description": "",
   "main": "index.js",
+  "private": true,
   "scripts": {
     "tsc": "npx tsc src/index.ts",
     "build": "npm run clean && tsc -p .",