diff --git a/package-lock.json b/package-lock.json
index 59065d8..5a75266 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,7 +7,6 @@
     "": {
       "name": "anchor",
       "version": "3.6.0",
-      "license": "MIT",
       "dependencies": {
         "fuse.js": "^6.6.2",
         "react": "^18.2.0",
diff --git a/package.json b/package.json
index 45b1e00..98c6a6b 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,7 @@
 {
   "name": "anchor",
-  "description": "Tab switcher for Google Chrome.",
+  "private": true,
   "version": "3.6.0",
-  "main": "build/index.js",
-  "author": "Katsuma Tanaka",
-  "license": "MIT",
   "scripts": {
     "build": "run-p build:css build:js",
     "build:css": "tailwindcss -i src/popup/index.css -o dist/popup/index.css --minify",