diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index 0943f69fb..28c011434 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -783,6 +783,7 @@ class ExercisesController < ApplicationController
 
   # 首页批量或单独 立即截止，截止时间为当前时间
   def end_exercise
+    sleep(1)
     ActiveRecord::Base.transaction do
       begin
         check_ids = Exercise.where(id:params[:check_ids])