diff --git a/sdk/csharp/AgentSafe.Spl.Tests/AgentSafe.Spl.Tests.csproj b/sdk/csharp/AgentSafe.Spl.Tests/AgentSafe.Spl.Tests.csproj
index d452a5d..6577fc5 100644
--- a/sdk/csharp/AgentSafe.Spl.Tests/AgentSafe.Spl.Tests.csproj
+++ b/sdk/csharp/AgentSafe.Spl.Tests/AgentSafe.Spl.Tests.csproj
@@ -6,7 +6,7 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" />
   </ItemGroup>