diff --git a/tests/Tests.AterraEngine.Unions/Tests.AterraEngine.Unions.csproj b/tests/Tests.AterraEngine.Unions/Tests.AterraEngine.Unions.csproj
index a5a6ad7..9f88f2d 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="2025.2.2" />
-        <PackageReference Include="TUnit" Version="1.0.0" />
+        <PackageReference Include="TUnit" Version="1.0.48" />
     </ItemGroup>
 
     <ItemGroup>