diff --git a/src/MaaWpfGui/ViewModels/UI/VersionUpdateViewModel.cs b/src/MaaWpfGui/ViewModels/UI/VersionUpdateViewModel.cs
index c53f7b3bb7..ef003a7ea1 100644
--- a/src/MaaWpfGui/ViewModels/UI/VersionUpdateViewModel.cs
+++ b/src/MaaWpfGui/ViewModels/UI/VersionUpdateViewModel.cs
@@ -35,7 +35,6 @@ using Newtonsoft.Json.Linq;
 using Semver;
 using Serilog;
 using Stylet;
-using Vanara;
 
 namespace MaaWpfGui.ViewModels.UI
 {