diff --git a/SpineViewer/ViewModels/MainWindow/SFMLRendererViewModel.cs b/SpineViewer/ViewModels/MainWindow/SFMLRendererViewModel.cs
index 7a4041a..f09c2d6 100644
--- a/SpineViewer/ViewModels/MainWindow/SFMLRendererViewModel.cs
+++ b/SpineViewer/ViewModels/MainWindow/SFMLRendererViewModel.cs
@@ -320,7 +320,7 @@ namespace SpineViewer.ViewModels.MainWindow
 
         public void CanvasMouseWheelScrolled(object? s, SFML.Window.MouseWheelScrollEventArgs e)
         {
-            var factor = e.Delta > 0 ? 1.1f : 0.9f;
+            var factor = e.Delta > 0 ? 1.01f : 0.99f;
             if ((Keyboard.Modifiers & ModifierKeys.Control) == 0)
             {
                 Zoom = Math.Clamp(Zoom * factor, 0.001f, 1000f); // 滚轮缩放限制一下缩放范围