diff --git a/package-versions.props b/package-versions.props
index e77a2ae86..72f7d975c 100644
--- a/package-versions.props
+++ b/package-versions.props
@@ -15,7 +15,7 @@
 <codeanalysisversion>4.14.*</codeanalysisversion>
 <coverletversion>6.0.*</coverletversion>
 <dapperversion>2.1.*</dapperversion>
- <fluentassertionsversion>7.2.*</fluentassertionsversion>
+ <fluentassertionsversion>8.6.0</fluentassertionsversion>
 <githubactionstestloggerversion>2.4.*</githubactionstestloggerversion>
 <inheritdocversion>2.0.*</inheritdocversion>
 <kiotaversion>1.*</kiotaversion>
</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/json-api-dotnet/JsonApiDotNetCore/pull/1762.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/json-api-dotnet/JsonApiDotNetCore/pull/1762.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>