diff --git a/docs/core/tutorials/snippets/library-with-visual-studio/csharp/StringLibraryTest/StringLibraryTest.csproj b/docs/core/tutorials/snippets/library-with-visual-studio/csharp/StringLibraryTest/StringLibraryTest.csproj
index 97c7516a112..533a08b7d24 100644
--- a/docs/core/tutorials/snippets/library-with-visual-studio/csharp/StringLibraryTest/StringLibraryTest.csproj
+++ b/docs/core/tutorials/snippets/library-with-visual-studio/csharp/StringLibraryTest/StringLibraryTest.csproj
@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="2.2.10" />
-    <PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
+    <PackageReference Include="MSTest.TestFramework" Version="4.0.1" />
     <PackageReference Include="coverlet.collector" Version="3.1.2">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>