diff --git a/tests/MyNihongo.FluentHttp.Tests.Integration/MyNihongo.FluentHttp.Tests.Integration.csproj b/tests/MyNihongo.FluentHttp.Tests.Integration/MyNihongo.FluentHttp.Tests.Integration.csproj
index fb80cc6..bca3aa1 100644
--- a/tests/MyNihongo.FluentHttp.Tests.Integration/MyNihongo.FluentHttp.Tests.Integration.csproj
+++ b/tests/MyNihongo.FluentHttp.Tests.Integration/MyNihongo.FluentHttp.Tests.Integration.csproj
@@ -8,7 +8,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="FluentAssertions" Version="6.12.0" />
+		<PackageReference Include="FluentAssertions" Version="8.0.0" />
 		<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
 		<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
diff --git a/tests/MyNihongo.FluentHttp.Tests.Unit/MyNihongo.FluentHttp.Tests.Unit.csproj b/tests/MyNihongo.FluentHttp.Tests.Unit/MyNihongo.FluentHttp.Tests.Unit.csproj
index 82c9f14..6500cbe 100644
--- a/tests/MyNihongo.FluentHttp.Tests.Unit/MyNihongo.FluentHttp.Tests.Unit.csproj
+++ b/tests/MyNihongo.FluentHttp.Tests.Unit/MyNihongo.FluentHttp.Tests.Unit.csproj
@@ -8,7 +8,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="FluentAssertions" Version="6.12.0" />
+		<PackageReference Include="FluentAssertions" Version="8.0.0" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
 		<PackageReference Include="MoqMicrosoftConfiguration" Version="1.0.5" />
 		<PackageReference Include="xunit" Version="2.7.0" />