diff --git a/springboot-rocketmq/pom.xml b/springboot-rocketmq/pom.xml
index 8558dd8..6a2cb1f 100644
--- a/springboot-rocketmq/pom.xml
+++ b/springboot-rocketmq/pom.xml
@@ -21,7 +21,7 @@
 <project.build.sourceencoding>UTF-8</project.build.sourceencoding>
 <project.reporting.outputencoding>UTF-8</project.reporting.outputencoding>
 <java.version>1.8</java.version>
- <spring-boot-version>2.1.5.RELEASE</spring-boot-version>
+ <spring-boot-version>2.5.12</spring-boot-version>
 <fastjson-version>1.2.38</fastjson-version>
 <rocketmq-version>4.3.2</rocketmq-version>
 <commons-lang-version>2.6</commons-lang-version>
</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/Thinkingcao/SpringBootLearning/pull/18.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/Thinkingcao/SpringBootLearning/pull/18.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>