diff --git a/tests/Tests.AterraEngine.Unions/Tests.AterraEngine.Unions.csproj b/tests/Tests.AterraEngine.Unions/Tests.AterraEngine.Unions.csproj
index 5635e94..2b5666b 100644
--- a/tests/Tests.AterraEngine.Unions/Tests.AterraEngine.Unions.csproj
+++ b/tests/Tests.AterraEngine.Unions/Tests.AterraEngine.Unions.csproj
@@ -12,7 +12,7 @@
 
     <ItemGroup>
         <PackageReference Include="JetBrains.Annotations" Version="2025.2.0" />
-        <PackageReference Include="TUnit" Version="0.25.21" />
+        <PackageReference Include="TUnit" Version="0.56.50" />
     </ItemGroup>
 
     <ItemGroup>