diff --git a/src/TranscribeCppSharp.Ui/TranscribeCppSharp.Ui.csproj b/src/TranscribeCppSharp.Ui/TranscribeCppSharp.Ui.csproj
index 6c41718..aeaf039 100644
--- a/src/TranscribeCppSharp.Ui/TranscribeCppSharp.Ui.csproj
+++ b/src/TranscribeCppSharp.Ui/TranscribeCppSharp.Ui.csproj
@@ -37,7 +37,7 @@
          error. Four of the five views use it. -->
     <PackageReference Include="Avalonia.Controls.DataGrid" Version="12.1.2" />
     <PackageReference Include="Avalonia.Fonts.Inter" Version="12.1.4" />
-    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.3.2" />
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.2" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.13" />
     <PackageReference Include="NAudio" Version="2.2.1" />
   </ItemGroup>
diff --git a/src/TranscribeCppSharp.Ui/packages.lock.json b/src/TranscribeCppSharp.Ui/packages.lock.json
index 139d372..a77777e 100644
--- a/src/TranscribeCppSharp.Ui/packages.lock.json
+++ b/src/TranscribeCppSharp.Ui/packages.lock.json
@@ -56,9 +56,9 @@
       },
       "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=="
       },
       "Microsoft.Extensions.DependencyInjection": {
         "type": "Direct",