diff --git a/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj b/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj
index 6c5edb1..f51894e 100644
--- a/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj
+++ b/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj
@@ -16,7 +16,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
     <PackageReference Include="MSTest.TestFramework" Version="4.0.1" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.11.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="4.0.1" />
     <PackageReference Include="coverlet.collector" Version="6.0.4" />
   </ItemGroup>
   <ItemGroup>