diff --git a/OSLC4Net_SDK/Directory.Packages.props b/OSLC4Net_SDK/Directory.Packages.props
index b311de84..f6e9e42c 100644
--- a/OSLC4Net_SDK/Directory.Packages.props
+++ b/OSLC4Net_SDK/Directory.Packages.props
@@ -32,7 +32,7 @@
     <PackageVersion Include="NSubstitute" Version="5.3.0" />
     <PackageVersion Include="NSubstitute.Analyzers.CSharp" Version="1.0.17" />
     <PackageVersion Include="FluentAssertions" Version="8.3.0" />
-    <PackageVersion Include="TUnit" Version="1.2.11" />
+    <PackageVersion Include="TUnit" Version="1.5.37" />
     <!-- Optional TUnit extensions for CI diagnostics -->
     <PackageVersion Include="Microsoft.Testing.Extensions.TrxReport" Version="2.0.2" />
     <PackageVersion Include="Microsoft.Testing.Extensions.HangDump" Version="2.0.2" />