diff --git a/lang/csharp/test/sourcepp.test.csproj b/lang/csharp/test/sourcepp.test.csproj
index 5db2d6b0..f92b603a 100644
--- a/lang/csharp/test/sourcepp.test.csproj
+++ b/lang/csharp/test/sourcepp.test.csproj
@@ -17,7 +17,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="4.3.3" />
     <PackageReference Include="MSTest.TestFramework" Version="4.3.3" />
   </ItemGroup>