diff --git a/tests/WsjtxUtils.WsjtxMessages.Tests/WsjtxUtils.WsjtxMessages.Tests.csproj b/tests/WsjtxUtils.WsjtxMessages.Tests/WsjtxUtils.WsjtxMessages.Tests.csproj
index 9c011e1..396a54f 100644
--- a/tests/WsjtxUtils.WsjtxMessages.Tests/WsjtxUtils.WsjtxMessages.Tests.csproj
+++ b/tests/WsjtxUtils.WsjtxMessages.Tests/WsjtxUtils.WsjtxMessages.Tests.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.2.0" />
     <PackageReference Include="MSTest.TestFramework" Version="3.2.0" />
   </ItemGroup>
diff --git a/tests/WsjtxUtils.WsjtxUdpServer.Tests/WsjtxUtils.WsjtxUdpServer.Tests.csproj b/tests/WsjtxUtils.WsjtxUdpServer.Tests/WsjtxUtils.WsjtxUdpServer.Tests.csproj
index 590b0e8..8522483 100644
--- a/tests/WsjtxUtils.WsjtxUdpServer.Tests/WsjtxUtils.WsjtxUdpServer.Tests.csproj
+++ b/tests/WsjtxUtils.WsjtxUdpServer.Tests/WsjtxUtils.WsjtxUdpServer.Tests.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="Moq" Version="4.20.70" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.2.0" />
     <PackageReference Include="MSTest.TestFramework" Version="3.2.0" />