diff --git a/QRCodeService/Infrastructure/Middlewares/CheckSignMiddleware.cs b/QRCodeService/Infrastructure/Middlewares/CheckSignMiddleware.cs
index d0d3570..576ae5d 100644
--- a/QRCodeService/Infrastructure/Middlewares/CheckSignMiddleware.cs
+++ b/QRCodeService/Infrastructure/Middlewares/CheckSignMiddleware.cs
@@ -10,6 +10,7 @@ using System.Threading.Tasks;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 using QRCodeService.Extensions;
+using Microsoft.EntityFrameworkCore.ChangeTracking;
 
 namespace QRCodeService.Infrastructure.Middlewares
 {
@@ -45,7 +46,8 @@ namespace QRCodeService.Infrastructure.Middlewares
                     var time = param.Where(kv=>kv.Key.ToLower()=="time").Single().Value.GetString();
                     var sign = param.Where(kv=>kv.Key.ToLower()== "sign").Single().Value.GetString();
                     var timeDate = time.ToDate("yyyyMMddHHmmss");
-                    if (timeDate == null||Math.Abs((timeDate.Value - DateTime.Now).TotalSeconds) > 60)//时间不同步
+                    var localTime = DateTime.Now.AddHours(8);
+                    if (timeDate == null||Math.Abs((timeDate.Value - localTime).TotalSeconds) > 60)//时间不同步
                     {
                         context.Response.StatusCode = StatusCodes.Status400BadRequest;
                         await context.Response.BodyWriter.WriteAsync(Encoding.UTF8.GetBytes("check sign failed"));