diff --git a/csharp/PhoneNumbers.Demo/PhoneNumbers.Demo.csproj b/csharp/PhoneNumbers.Demo/PhoneNumbers.Demo.csproj
index da7fdc787..4f344f27c 100644
--- a/csharp/PhoneNumbers.Demo/PhoneNumbers.Demo.csproj
+++ b/csharp/PhoneNumbers.Demo/PhoneNumbers.Demo.csproj
@@ -9,8 +9,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="10.0.6" />
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="10.0.6" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="10.0.9" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="10.0.9" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>