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 f28e89d..406dd7d 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="8.4.0" />
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.2" />
 	  <PackageReference Include="Depository" Version="4.0.1" />
 	  <PackageReference Include="Microsoft.WindowsAppSDK" Version="2.0.0-experimental3" />
 	  <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.28000.1-RTM" />