diff --git a/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs b/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
index acf0fc037..74ad89285 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
@@ -2895,6 +2895,12 @@ namespace IRaCIS.Core.Application.Service
                 {
                     skipcount = random.Next(0, count - 1);
                 }
+
+                var maxReadingTime = query.MaxOrDefault(x => x.FirstReadingTime);
+                if (maxReadingTime != null)
+                {
+                    query = query.Where(x => x.FirstReadingTime == maxReadingTime);
+                }
                 task = await query
                     .Select(x => new GetReadingTaskDto()
                     {