diff --git a/Test/Notion.IntegrationTests/Notion.IntegrationTests.csproj b/Test/Notion.IntegrationTests/Notion.IntegrationTests.csproj
index 1284ee3f..acb2369f 100644
--- a/Test/Notion.IntegrationTests/Notion.IntegrationTests.csproj
+++ b/Test/Notion.IntegrationTests/Notion.IntegrationTests.csproj
@@ -12,7 +12,7 @@
 </itemgroup>
 
 <itemgroup>
- <packagereference Include="FluentAssertions" Version="5.10.3" />
+ <packagereference Include="FluentAssertions" Version="8.2.0" />
 <packagereference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
 <packagereference Include="xunit" Version="2.4.1" />
 <packagereference Include="xunit.runner.visualstudio" Version="3.0.2">
diff --git a/Test/Notion.UnitTests/Notion.UnitTests.csproj b/Test/Notion.UnitTests/Notion.UnitTests.csproj
index 6a33f5c0..e407bca8 100644
--- a/Test/Notion.UnitTests/Notion.UnitTests.csproj
+++ b/Test/Notion.UnitTests/Notion.UnitTests.csproj
@@ -7,7 +7,7 @@
 </propertygroup>
 
 <itemgroup>
- <packagereference Include="FluentAssertions" Version="5.10.3" />
+ <packagereference Include="FluentAssertions" Version="8.2.0" />
 <packagereference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
 <packagereference Include="Microsoft.VisualStudio.VsixColorCompiler" Version="17.11.35325.10" />
 <packagereference Include="WireMock.Net" Version="1.4.19" />
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<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/notion-dotnet/notion-sdk-net/pull/447.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/notion-dotnet/notion-sdk-net/pull/447.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">配色反転</option>
<option value="larger-text" selected="selected">文字拡大</option>
<option value="mobile">モバイル</option>
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<input type="submit" value="表示" />
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