diff --git a/BBWYB.PurchaserCapture/MainWindow.xaml.cs b/BBWYB.PurchaserCapture/MainWindow.xaml.cs
index 5ae174f..3d259d3 100644
--- a/BBWYB.PurchaserCapture/MainWindow.xaml.cs
+++ b/BBWYB.PurchaserCapture/MainWindow.xaml.cs
@@ -130,7 +130,7 @@ namespace BBWYB.PurchaserCapture
                                     .WithTempQuery(g => new { MaxId = g.Max(g.Value.Item1.Id), PurchaserId = g.Key.Id, MemberId = g.Key.MemberId })
                                     .From<PurchaseSchemeProduct>()
                                     .InnerJoin((psp2, psp1) => psp2.MaxId == psp1.Id)
-                                    .OrderByDescending((psp2, psp1) => psp1.Id)
+                                    .OrderByDescending((psp2, psp1) => Guid.NewGuid())
                                     .ToList((psp2, psp1) => new
                                     {
                                         psp1.PurchaserId,
@@ -145,7 +145,7 @@ namespace BBWYB.PurchaserCapture
                     purchaserMemberId = pspList[i].MemberId;
                     var url = $"https://detail.1688.com/offer/{pspList[i].PurchaseProductId}.html?clickid={Guid.NewGuid().ToString().Md5Encrypt()}&sessionid={Guid.NewGuid().ToString().Md5Encrypt()}&sk={sk}";
                     Navigate(url);
-                    
+
                     Thread.Sleep(10000);
                 }
             });