diff --git a/bff/src/Altinn.Authentication.UI/Altinn.Authentication.UI.Tests/Altinn.Authentication.UI.Tests.csproj b/bff/src/Altinn.Authentication.UI/Altinn.Authentication.UI.Tests/Altinn.Authentication.UI.Tests.csproj
index 90e7306f..a072464d 100644
--- a/bff/src/Altinn.Authentication.UI/Altinn.Authentication.UI.Tests/Altinn.Authentication.UI.Tests.csproj
+++ b/bff/src/Altinn.Authentication.UI/Altinn.Authentication.UI.Tests/Altinn.Authentication.UI.Tests.csproj
@@ -11,7 +11,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.11" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="xunit" Version="2.9.2" />