diff --git a/samples/dotnet/saml-sp-login/tests/saml-sp-login.tests.csproj b/samples/dotnet/saml-sp-login/tests/saml-sp-login.tests.csproj
index bcefe7d..2f8a299 100644
--- a/samples/dotnet/saml-sp-login/tests/saml-sp-login.tests.csproj
+++ b/samples/dotnet/saml-sp-login/tests/saml-sp-login.tests.csproj
@@ -10,7 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="4.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.11" />
     <!-- Override transitive dep with vulnerable System.Drawing.Common 4.7.0 (NU1904 / GHSA-rxg9-xrhp-64gj). -->
     <PackageReference Include="System.Drawing.Common" Version="10.0.11" />