diff --git a/HyPlayer.PlayCore.Demo.AudioGraph.WinUI3/HyPlayer.PlayCore.Demo.AudioGraph.WinUI3.csproj b/HyPlayer.PlayCore.Demo.AudioGraph.WinUI3/HyPlayer.PlayCore.Demo.AudioGraph.WinUI3.csproj
index 4d4618c..ce29445 100644
--- a/HyPlayer.PlayCore.Demo.AudioGraph.WinUI3/HyPlayer.PlayCore.Demo.AudioGraph.WinUI3.csproj
+++ b/HyPlayer.PlayCore.Demo.AudioGraph.WinUI3/HyPlayer.PlayCore.Demo.AudioGraph.WinUI3.csproj
@@ -29,7 +29,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
     <PackageReference Include="Depository" Version="2.1.0" />
     <PackageReference Include="Microsoft.WindowsAppSDK" Version="1.5.240627000" />
     <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.26100.1" />