diff --git a/test/FunctionalStateMachine.Diagrams.Tests/FunctionalStateMachine.Diagrams.Tests.csproj b/test/FunctionalStateMachine.Diagrams.Tests/FunctionalStateMachine.Diagrams.Tests.csproj
index f93ca38..5c875a0 100644
--- a/test/FunctionalStateMachine.Diagrams.Tests/FunctionalStateMachine.Diagrams.Tests.csproj
+++ b/test/FunctionalStateMachine.Diagrams.Tests/FunctionalStateMachine.Diagrams.Tests.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1"/>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1"/>
     <PackageReference Include="JunitXml.TestLogger" Version="8.0.0"/>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0"/>
     <PackageReference Include="xunit" Version="2.9.3"/>