diff --git a/DIDemo.Services.Tests/DIDemo.Services.Tests.csproj b/DIDemo.Services.Tests/DIDemo.Services.Tests.csproj
index 9203737..b018c51 100644
--- a/DIDemo.Services.Tests/DIDemo.Services.Tests.csproj
+++ b/DIDemo.Services.Tests/DIDemo.Services.Tests.csproj
@@ -4,7 +4,7 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
-    <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="4.3.2" />
     <PackageReference Include="MSTest.TestFramework" Version="4.3.2" />
   </ItemGroup>
diff --git a/DIDemo.Tests/DIDemo.Tests.csproj b/DIDemo.Tests/DIDemo.Tests.csproj
index e613cd5..37ec9b6 100644
--- a/DIDemo.Tests/DIDemo.Tests.csproj
+++ b/DIDemo.Tests/DIDemo.Tests.csproj
@@ -4,7 +4,7 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
-    <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="4.2.3" />
     <PackageReference Include="MSTest.TestFramework" Version="4.2.3" />
   </ItemGroup>