diff --git a/MsGraphSamples.WPF/MsGraphSamples.WPF.csproj b/MsGraphSamples.WPF/MsGraphSamples.WPF.csproj
index ce30b1b..322714d 100644
--- a/MsGraphSamples.WPF/MsGraphSamples.WPF.csproj
+++ b/MsGraphSamples.WPF/MsGraphSamples.WPF.csproj
@@ -17,7 +17,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.3.2" />
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
     <PackageReference Include="Microsoft.Graph" Version="5.62.0" />
     <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.135" />
diff --git a/MsGraphSamples.WinUI/MsGraphSamples.WinUI.csproj b/MsGraphSamples.WinUI/MsGraphSamples.WinUI.csproj
index 7db1ced..c8ce353 100644
--- a/MsGraphSamples.WinUI/MsGraphSamples.WinUI.csproj
+++ b/MsGraphSamples.WinUI/MsGraphSamples.WinUI.csproj
@@ -30,7 +30,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="CommunityToolkit.Mvvm" Version="8.3.2" />
+		<PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
 		<PackageReference Include="CommunityToolkit.WinUI.Converters" Version="8.1.240916" />
 		<PackageReference Include="CommunityToolkit.WinUI.UI.Controls.DataGrid" Version="7.1.2" />
 		<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />