diff --git a/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj b/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj
index 1b614b8..f108150 100644
--- a/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj
+++ b/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj
@@ -16,7 +16,7 @@
   <ItemGroup>
     <PackageReference Include="MSTest.TestFramework" Version="4.3.3" />
     <PackageReference Include="MSTest.TestAdapter" Version="4.3.3" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="coverlet.collector" Version="10.0.1" />
   </ItemGroup>
   <ItemGroup>
diff --git a/Demo02.LayeredArchitecture.Application.Test/Demo02.LayeredArchitecture.Application.Test.csproj b/Demo02.LayeredArchitecture.Application.Test/Demo02.LayeredArchitecture.Application.Test.csproj
index 8f8c156..765450c 100644
--- a/Demo02.LayeredArchitecture.Application.Test/Demo02.LayeredArchitecture.Application.Test.csproj
+++ b/Demo02.LayeredArchitecture.Application.Test/Demo02.LayeredArchitecture.Application.Test.csproj
@@ -24,7 +24,7 @@
     <PackageReference Include="System.Configuration.ConfigurationManager" Version="10.0.10" />
     <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="6.1.2" />
     <PackageReference Include="MSTest.TestAdapter" Version="4.3.3" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="coverlet.collector" Version="10.0.1" />
   </ItemGroup>
   <Choose>