diff --git a/Winleafs.Wpf/Winleafs.Wpf.csproj b/Winleafs.Wpf/Winleafs.Wpf.csproj
index 77b691a..c4bd09b 100644
--- a/Winleafs.Wpf/Winleafs.Wpf.csproj
+++ b/Winleafs.Wpf/Winleafs.Wpf.csproj
@@ -34,7 +34,7 @@
       </PackageReference>
       <PackageReference Include="MaterialDesignColors" Version="1.2.7" />
       <PackageReference Include="MaterialDesignExtensions" Version="3.2.0" />
-      <PackageReference Include="MaterialDesignThemes" Version="3.2.0" />
+      <PackageReference Include="MaterialDesignThemes" Version="4.0.0" />
       <PackageReference Include="Newtonsoft.Json">
         <Version>12.0.3</Version>
       </PackageReference>