diff --git a/Packages.props b/Packages.props
index b9d439d20f4..8c3c9329755 100644
--- a/Packages.props
+++ b/Packages.props
@@ -21,6 +21,7 @@
     <PackageReference Update="ExceptionReporter " Version="2.4.2" />
     <PackageReference Update="IKVM" Version="8.11.0-dev.176" />
     <PackageReference Update="Microsoft.Build.Utilities.Core" Version="17.1.0" />
+    <PackageReference Update="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Update="Microsoft.NET.Test.Sdk" Version="17.1.0" />
     <PackageReference Update="Microsoft.Toolkit.Uwp.Notifications" Version="7.1.2" />
     <PackageReference Update="Microsoft.Windows.CsWin32" Version="0.3.106" />
diff --git a/bonjour/src/main/csharp/Cyberduck.Bonjour.Native.csproj b/bonjour/src/main/csharp/Cyberduck.Bonjour.Native.csproj
index b176bbca869..f26981c6860 100644
--- a/bonjour/src/main/csharp/Cyberduck.Bonjour.Native.csproj
+++ b/bonjour/src/main/csharp/Cyberduck.Bonjour.Native.csproj
@@ -14,6 +14,7 @@
 
   <ItemGroup>
     <PackageReference Include="IKVM" />
+    <PackageReference Include="Microsoft.CSharp" />
   </ItemGroup>
 
   <ItemGroup>