diff --git a/LICENSE b/LICENSE
index 31a3e2b..4e98615 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2020-2021 Toshimaru
+Copyright (c) 2020-2022 Toshimaru
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/action.yml b/action.yml
index c16a8f4..a26b5e8 100644
--- a/action.yml
+++ b/action.yml
@@ -6,7 +6,7 @@ inputs:
     description: 'A token for the repository'
     default: '${{ github.token }}'
 runs:
-  using: 'node12'
+  using: 'node16'
   main: 'dist/index.js'
 branding:
   icon: 'user-plus'
diff --git a/package.json b/package.json
index 238a171..9e3bef0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,7 @@
 {
   "name": "auto-author-assign",
   "version": "1.4.0",
+  "private": true,
   "description": "GitHub Actions: Assign pull request author automatically.",
   "main": "src/index.js",
   "scripts": {
@@ -14,11 +15,11 @@
   },
   "keywords": [
     "github",
+    "actions",
     "github-action"
   ],
   "author": "toshimaru",
   "license": "MIT",
-  "private": true,
   "bugs": {
     "url": "https://github.com/toshimaru/auto-author-assign/issues"
   },