diff --git a/lib/tasks/public_course.rake b/lib/tasks/public_course.rake
index 5e56926b3..d4f62a6e0 100644
--- a/lib/tasks/public_course.rake
+++ b/lib/tasks/public_course.rake
@@ -88,6 +88,8 @@ namespace :public_course do
 
         homework.update_columns(publish_time: publish_time, end_time: end_time, created_at: created_at, updated_at: updated_at)
         homework.homework_detail_manual.update_columns(comment_status: 6, created_at: created_at, updated_at: updated_at)
+
+        homework.student_works.where("work_status !=0 and update_time > '#{end_time}'").update_all(update_time: end_time)
       end
     when 3
       # 试卷