diff --git a/springmvc-viewresolvers-ContentNegotiating/pom.xml b/springmvc-viewresolvers-ContentNegotiating/pom.xml
index bd53ad6..752de0b 100644
--- a/springmvc-viewresolvers-ContentNegotiating/pom.xml
+++ b/springmvc-viewresolvers-ContentNegotiating/pom.xml
@@ -17,7 +17,7 @@
 		<mvn.war.plugin.version>2.4</mvn.war.plugin.version>
 		<junit.version>4.12</junit.version>
 
-		<springframework.version>5.1.0.RELEASE</springframework.version>
+		<springframework.version>5.2.22.RELEASE</springframework.version>
 		<hibernate.validator.version>5.1.2.Final</hibernate.validator.version>
 		<javax.validation.version>1.1.0.Final</javax.validation.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/javabyranjith/spring-framework-mvc/pull/29.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/javabyranjith/spring-framework-mvc/pull/29.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>