diff --git a/Rnwood.Smtp4dev.Desktop.Tests/Rnwood.Smtp4dev.Desktop.Tests.csproj b/Rnwood.Smtp4dev.Desktop.Tests/Rnwood.Smtp4dev.Desktop.Tests.csproj
index 65a3628ed..ed90d96ff 100644
--- a/Rnwood.Smtp4dev.Desktop.Tests/Rnwood.Smtp4dev.Desktop.Tests.csproj
+++ b/Rnwood.Smtp4dev.Desktop.Tests/Rnwood.Smtp4dev.Desktop.Tests.csproj
@@ -11,7 +11,7 @@
 
   <ItemGroup>
     <PackageReference Include="MedallionShell" Version="1.6.2" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="coverlet.collector" Version="6.0.2" />
     <PackageReference Include="xunit" Version="2.8.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.0">
diff --git a/Rnwood.Smtp4dev.Tests/Rnwood.Smtp4dev.Tests.csproj b/Rnwood.Smtp4dev.Tests/Rnwood.Smtp4dev.Tests.csproj
index d55b74450..bd99e4057 100644
--- a/Rnwood.Smtp4dev.Tests/Rnwood.Smtp4dev.Tests.csproj
+++ b/Rnwood.Smtp4dev.Tests/Rnwood.Smtp4dev.Tests.csproj
@@ -29,7 +29,7 @@
     <PackageReference Include="MedallionShell" Version="1.6.2" />
     <PackageReference Include="NSubstitute" Version="5.1.0" />
     <PackageReference Include="ReflectionMagic" Version="5.0.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="Selenium.Support" Version="4.21.0" />
     <PackageReference Include="Selenium.WebDriver" Version="4.21.0" />
     <PackageReference Include="System.Configuration.ConfigurationManager" Version="8.0.0" />
diff --git a/smtpserver/Rnwood.SmtpServer.Tests/Rnwood.SmtpServer.Tests.csproj b/smtpserver/Rnwood.SmtpServer.Tests/Rnwood.SmtpServer.Tests.csproj
index 0014f12cd..c011eab8d 100644
--- a/smtpserver/Rnwood.SmtpServer.Tests/Rnwood.SmtpServer.Tests.csproj
+++ b/smtpserver/Rnwood.SmtpServer.Tests/Rnwood.SmtpServer.Tests.csproj
@@ -22,7 +22,7 @@
 
   <ItemGroup>
     <PackageReference Include="FluentAssertions" Version="6.12.0"/>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0"/>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0"/>
     <PackageReference Include="NETStandard.Library" Version="2.0.3"/>
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.0"/>
     <PackageReference Include="System.Collections.NonGeneric" Version="4.3.0"/>