diff --git a/.github/workflows/backward-compatibility.yml b/.github/workflows/backward-compatibility.yml
index 62b2839b..e6e58359 100644
--- a/.github/workflows/backward-compatibility.yml
+++ b/.github/workflows/backward-compatibility.yml
@@ -17,7 +17,7 @@ jobs:
 
 steps:
 - name: "Checkout"
- uses: "actions/checkout@v2"
+ uses: actions/checkout@v3
 with:
 fetch-depth: 0
 
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e7d0a685..d89e8f19 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,7 +25,7 @@ jobs:
 
 steps:
 - name: "Checkout"
- uses: "actions/checkout@v2"
+ uses: actions/checkout@v3
 
 - name: "Install PHP"
 uses: "shivammathur/setup-php@v2"
@@ -53,7 +53,7 @@ jobs:
 
 steps:
 - name: "Checkout"
- uses: "actions/checkout@v2"
+ uses: actions/checkout@v3
 
 - name: "Install PHP"
 uses: "shivammathur/setup-php@v2"
@@ -93,7 +93,7 @@ jobs:
 
 steps:
 - name: "Checkout"
- uses: "actions/checkout@v2"
+ uses: actions/checkout@v3
 
 - name: "Install PHP"
 uses: "shivammathur/setup-php@v2"
@@ -133,7 +133,7 @@ jobs:
 
 steps:
 - name: "Checkout"
- uses: "actions/checkout@v2"
+ uses: actions/checkout@v3
 
 - name: "Install PHP"
 uses: "shivammathur/setup-php@v2"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0ebed840..5fed0458 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,7 +14,7 @@ jobs:
 
 steps:
 - name: "Checkout"
- uses: "actions/checkout@v2"
+ uses: actions/checkout@v3
 
 - name: Generate changelog
 id: changelog
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://patch-diff.githubusercontent.com/raw/phpstan/phpdoc-parser/pull/104.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://patch-diff.githubusercontent.com/raw/phpstan/phpdoc-parser/pull/104.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>