diff --git a/installer/installer.csproj b/installer/installer.csproj
index f3913d02..07c8ea24 100755
--- a/installer/installer.csproj
+++ b/installer/installer.csproj
@@ -97,7 +97,7 @@
 	<ItemGroup>
 		<PackageReference Include="CommunityToolkit.Maui" Version="7.0.1" />
 		<PackageReference Include="CommunityToolkit.Maui.Core" Version="9.0.0" />
-		<PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />
+		<PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
 		<PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="8.0.0" />
 		<PackageReference Include="Tencent.QCloud.Cos.Sdk" Version="5.4.38" />
 		<PackageReference Include="Microsoft.Maui.Controls" Version="8.0.40" />
diff --git a/logic/Client/Client.csproj b/logic/Client/Client.csproj
index 920fa118..abe4ab8d 100755
--- a/logic/Client/Client.csproj
+++ b/logic/Client/Client.csproj
@@ -69,7 +69,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="CommandLineParser" Version="2.9.1" />
-		<PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />
+		<PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
 		<PackageReference Include="FrameRateTask" Version="1.2.0" />
 		<PackageReference Include="Google.Protobuf" Version="3.27.2" />
 		<PackageReference Include="Grpc" Version="2.46.6" />