diff --git a/tests/SkatteverketMcpServer.Tests/SkatteverketMcpServer.Tests.csproj b/tests/SkatteverketMcpServer.Tests/SkatteverketMcpServer.Tests.csproj
index 2673627..0547552 100644
--- a/tests/SkatteverketMcpServer.Tests/SkatteverketMcpServer.Tests.csproj
+++ b/tests/SkatteverketMcpServer.Tests/SkatteverketMcpServer.Tests.csproj
@@ -16,7 +16,7 @@
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     <PackageReference Include="Moq" Version="4.20.70" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="FluentAssertions" Version="8.8.0" />
     <PackageReference Include="coverlet.collector" Version="6.0.1">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>