diff --git a/Vibecheck.Git.Tests/Vibecheck.Git.Tests.csproj b/Vibecheck.Git.Tests/Vibecheck.Git.Tests.csproj
index 0bc2c81..a21dae1 100644
--- a/Vibecheck.Git.Tests/Vibecheck.Git.Tests.csproj
+++ b/Vibecheck.Git.Tests/Vibecheck.Git.Tests.csproj
@@ -9,6 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
     <ProjectReference Include="..\Vibecheck.Git\Vibecheck.Git.csproj" />
   </ItemGroup>
 
diff --git a/Vibecheck.Inference.Tests/Vibecheck.Utility.Tests.fsproj b/Vibecheck.Inference.Tests/Vibecheck.Utility.Tests.fsproj
index e441d0e..9dd4357 100644
--- a/Vibecheck.Inference.Tests/Vibecheck.Utility.Tests.fsproj
+++ b/Vibecheck.Inference.Tests/Vibecheck.Utility.Tests.fsproj
@@ -14,6 +14,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
     <ProjectReference Include="..\Vibecheck.Utility\Vibecheck.Utility.csproj" />
   </ItemGroup>