diff --git a/NatTypeTester/NatTypeTester.csproj b/NatTypeTester/NatTypeTester.csproj
index 254df3c3b2..649d2cbabf 100644
--- a/NatTypeTester/NatTypeTester.csproj
+++ b/NatTypeTester/NatTypeTester.csproj
@@ -15,7 +15,7 @@
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="5.0.0" />
     <PackageReference Include="ModernWpfUI" Version="0.9.4" />
     <PackageReference Include="ReactiveMarbles.ObservableEvents.SourceGenerator" Version="1.1.4" PrivateAssets="all" />
-    <PackageReference Include="ReactiveUI.WPF" Version="16.3.5" />
+    <PackageReference Include="ReactiveUI.WPF" Version="16.3.9" />
     <PackageReference Include="Splat.Microsoft.Extensions.DependencyInjection" Version="13.1.30" />
     <PackageReference Include="Volo.Abp.Autofac" Version="4.4.3" />
   </ItemGroup>