diff --git a/core/getting-started/unit-testing-using-mstest/PrimeService.Tests/PrimeService.Tests.csproj b/core/getting-started/unit-testing-using-mstest/PrimeService.Tests/PrimeService.Tests.csproj
index 2f43d3ca12c..3c91a1f4b4c 100644
--- a/core/getting-started/unit-testing-using-mstest/PrimeService.Tests/PrimeService.Tests.csproj
+++ b/core/getting-started/unit-testing-using-mstest/PrimeService.Tests/PrimeService.Tests.csproj
@@ -7,7 +7,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="MSTest.TestFramework" Version="3.3.1" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.3.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.4.1" />
   </ItemGroup>
 
   <ItemGroup>