diff --git a/src/Daxis.App/Daxis.App.csproj b/src/Daxis.App/Daxis.App.csproj
index 7acff1b..8904e16 100644
--- a/src/Daxis.App/Daxis.App.csproj
+++ b/src/Daxis.App/Daxis.App.csproj
@@ -20,7 +20,7 @@
     <PackageReference Include="Avalonia.Themes.Fluent" Version="11.3.22" />
     <PackageReference Include="Avalonia.Controls.DataGrid" Version="11.3.13" />
     <PackageReference Include="Avalonia.AvaloniaEdit" Version="11.4.1" />
-    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.3.2" />
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.2" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Daxis.Core\Daxis.Core.csproj" />
diff --git a/src/Daxis.App/packages.lock.json b/src/Daxis.App/packages.lock.json
index 85b98a3..717b762 100644
--- a/src/Daxis.App/packages.lock.json
+++ b/src/Daxis.App/packages.lock.json
@@ -55,9 +55,9 @@
       },
       "CommunityToolkit.Mvvm": {
         "type": "Direct",
-        "requested": "[8.3.2, )",
-        "resolved": "8.3.2",
-        "contentHash": "m8EolE1A0Updj68WTsZSGI6VWb6mUqHPh7QFo0kt7+JPhYMNXRS1ch8TS/oITAdcxTLrwMOp3ku1KjeG1/Zdpg=="
+        "requested": "[8.4.2, )",
+        "resolved": "8.4.2",
+        "contentHash": "WadCzGEc2U+3e20avRLng4qNtt4zoOGWrdUISqJWrHe3/FSnrYjuM5Sb4yQb09LhkBXrrI4Zt3dLKgRMbItsrg=="
       },
       "Avalonia.Angle.Windows.Natives": {
         "type": "Transitive",