diff --git a/CheckLanguageFile/CheckLanguageFile.csproj b/CheckLanguageFile/CheckLanguageFile.csproj
index 9aeddd1..ea61f50 100644
--- a/CheckLanguageFile/CheckLanguageFile.csproj
+++ b/CheckLanguageFile/CheckLanguageFile.csproj
@@ -21,7 +21,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.3.1" />
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
     <PackageReference Include="GitVersion.MsBuild" Version="5.12.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>