diff --git a/package.json b/package.json
index 3656139..c971120 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
 "react-dom": "^15.5.4",
 "react-test-renderer": "^15.5.4",
 "redux": "^3.0.4",
- "ts-jest": "^20.0.2",
+ "ts-jest": "^21.0.0",
 "typescript": "^2.5.2"
 },
 "jest": {
</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/reactive-react/xreact/pull/43.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/reactive-react/xreact/pull/43.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>