diff --git a/EchoTcpServerTests/EchoTcpServerTests.csproj b/EchoTcpServerTests/EchoTcpServerTests.csproj
index 7e35cd8..4995cfc 100644
--- a/EchoTcpServerTests/EchoTcpServerTests.csproj
+++ b/EchoTcpServerTests/EchoTcpServerTests.csproj
@@ -16,7 +16,7 @@
     </PackageReference>
     <PackageReference Include="coverlet.collector" Version="6.0.0" />
     <PackageReference Include="NetArchTest.Rules" Version="1.3.2" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="NUnit" Version="3.14.0" />
     <PackageReference Include="NUnit.Analyzers" Version="3.9.0" />
diff --git a/NetSdrClientAppTests/NetSdrClientAppTests.csproj b/NetSdrClientAppTests/NetSdrClientAppTests.csproj
index c1f4c1d..ca9ef67 100644
--- a/NetSdrClientAppTests/NetSdrClientAppTests.csproj
+++ b/NetSdrClientAppTests/NetSdrClientAppTests.csproj
@@ -16,7 +16,7 @@
     </PackageReference>
     <PackageReference Include="coverlet.collector" Version="6.0.0" />
     <PackageReference Include="NetArchTest.Rules" Version="1.3.2" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="NUnit" Version="3.14.0" />
     <PackageReference Include="NUnit.Analyzers" Version="3.9.0" />