diff --git a/tests/Directory.Build.props b/tests/Directory.Build.props
index b23e239e..cdf95a31 100644
--- a/tests/Directory.Build.props
+++ b/tests/Directory.Build.props
@@ -1,4 +1,5 @@
 <Project>
+	<Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
 	<PropertyGroup>
 		<TargetFrameworks>net8.0;net462</TargetFrameworks>
 		<IsTestProject>true</IsTestProject>
diff --git a/tests/serialization/text/Microsoft.Kiota.Serialization.Text.Tests.csproj b/tests/serialization/text/Microsoft.Kiota.Serialization.Text.Tests.csproj
index 812aa8ec..b3e3e2cd 100644
--- a/tests/serialization/text/Microsoft.Kiota.Serialization.Text.Tests.csproj
+++ b/tests/serialization/text/Microsoft.Kiota.Serialization.Text.Tests.csproj
@@ -1,5 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
+  <PropertyGroup>
+    <Nullable>enable</Nullable> <!-- This test project supports NRT other projects need cleanup as outlined in https://github.com/microsoft/kiota-dotnet/issues/323 -->
+  </PropertyGroup>
+  
   <ItemGroup>
     <PackageReference Include="coverlet.msbuild" Version="6.0.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>