diff --git a/composer.json b/composer.json
index ec0856e..724c8b0 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,8 @@
 "sort-packages": true,
 "preferred-install": "dist"
 },
- "minimum-stability": "stable",
+ "minimum-stability": "dev",
+ "prefer-stable": true,
 "support": {
 "issues": "https://github.com/arraypress/ipinfo/issues",
 "source": "https://github.com/arraypress/ipinfo"
</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://github.com/arraypress/wp-ipinfo/compare/main...master.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://github.com/arraypress/wp-ipinfo/compare/main...master.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>