diff --git a/build.sbt b/build.sbt
index b09747ed..22fd1ce8 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,4 +1,4 @@
-val scala3 = "3.7.2"
+val scala3 = "3.7.3"
 lazy val root = project
 .in(file("."))
 .settings(
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<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/deanwampler/programming-scala-book-code-examples/pull/185.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/deanwampler/programming-scala-book-code-examples/pull/185.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>