diff --git a/src/iTextSharp.LGPLv2.Core.FunctionalTests/iTextSharp.LGPLv2.Core.FunctionalTests.csproj b/src/iTextSharp.LGPLv2.Core.FunctionalTests/iTextSharp.LGPLv2.Core.FunctionalTests.csproj
index bdc9c40..d64d48a 100644
--- a/src/iTextSharp.LGPLv2.Core.FunctionalTests/iTextSharp.LGPLv2.Core.FunctionalTests.csproj
+++ b/src/iTextSharp.LGPLv2.Core.FunctionalTests/iTextSharp.LGPLv2.Core.FunctionalTests.csproj
@@ -15,7 +15,7 @@
     <ProjectReference Include="..\iTextSharp.LGPLv2.Core\iTextSharp.LGPLv2.Core.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="MSTest.TestAdapter" Version="2.1.2" />
     <PackageReference Include="MSTest.TestFramework" Version="2.1.2" />
   </ItemGroup>