diff --git a/merit_rank/all_ranking.md b/merit_rank/all_ranking.md
index e290c79e9..6663507f4 100644
--- a/merit_rank/all_ranking.md
+++ b/merit_rank/all_ranking.md
@@ -27,7 +27,7 @@
      * 微认证：[ModelArts实现零售商客户分群](https://github.com/huaweicloud/ModelArts-Lab/issues/177#issuecomment-507639946)
           
 * maomaode：18个积分，贡献点：
-     * 完成案例：[手写数字案例](https://github.com/huaweicloud/ModelArts-Lab/issues/6)，[第一期](https://github.com/huaweicloud/ModelArts-Lab/issues/49#issuecomment-505020322)，[第二期](https://github.com/huaweicloud/ModelArts-Lab/issues/113#issuecomment-504632254)，[第三期](https://github.com/huaweicloud/ModelArts-Lab/issues/219#issuecomment-508747668)，[第四期](https://github.com/huaweicloud/ModelArts-Lab/issues/402#issuecomment-513433581)，[第五期](https://github.com/huaweicloud/ModelArts-Lab/issues/637#issuecomment-520117673)，[第六期](https://github.com/huaweicloud/ModelArts-Lab/issues/837#issuecomment-526009164)，[第七期](https://github.com/huaweicloud/ModelArts-Lab/issues/931#issuecomment-537355546)，[第八期](https://github.com/huaweicloud/ModelArts-Lab/issues/1025#issuecomment-537354095)，[第九期](https://github.com/huaweicloud/ModelArts-Lab/issues/1087#issuecomment-537312667)，[第十期](https://github.com/huaweicloud/ModelArts-Lab/issues/1111#issuecomment-537352541)，[第十一期](https://github.com/huaweicloud/ModelArts-Lab/issues/1177#issuecomment-540495645)，[第十二期](https://github.com/huaweicloud/ModelArts-Lab/issues/1248#issuecomment-541611215)
+     * 完成案例：[手写数字案例](https://github.com/huaweicloud/ModelArts-Lab/issues/6)，[第一期](https://github.com/huaweicloud/ModelArts-Lab/issues/49#issuecomment-505020322)，[第二期](https://github.com/huaweicloud/ModelArts-Lab/issues/113#issuecomment-504632254)，[第三期](https://github.com/huaweicloud/ModelArts-Lab/issues/219#issuecomment-508747668)，[第四期](https://github.com/huaweicloud/ModelArts-Lab/issues/402#issuecomment-513433581)，[第五期](https://github.com/huaweicloud/ModelArts-Lab/issues/637#issuecomment-520117673)，[第六期](https://github.com/huaweicloud/ModelArts-Lab/issues/837#issuecomment-526009164)，[第七期](https://github.com/huaweicloud/ModelArts-Lab/issues/931#issuecomment-537355546)，[第八期](https://github.com/huaweicloud/ModelArts-Lab/issues/1025#issuecomment-537354095)，[第九期](https://github.com/huaweicloud/ModelArts-Lab/issues/1087#issuecomment-537312667)，[第十期](https://github.com/huaweicloud/ModelArts-Lab/issues/1111#issuecomment-537352541)，[第十一期](https://github.com/huaweicloud/ModelArts-Lab/issues/1177#issuecomment-540495645)，[第十二期](https://github.com/huaweicloud/ModelArts-Lab/issues/1248#issuecomment-541611215)[第十三期](https://github.com/huaweicloud/ModelArts-Lab/issues/1343#issuecomment-546841768)[第十四期](https://github.com/huaweicloud/ModelArts-Lab/issues/1364#issuecomment-546842408)[第十五期](https://github.com/huaweicloud/ModelArts-Lab/issues/1395#issuecomment-546774908)[第十六期](https://github.com/huaweicloud/ModelArts-Lab/issues/1445#issuecomment-546755427)
      * 体验文章：[文章1](https://github.com/benmcq2019/ModelArts-Lab/wiki/%E5%AE%9E%E6%88%98%E5%8D%8E%E4%B8%BA%E4%BA%91ModelArts%EF%BC%8C%E4%B8%89%E6%AD%A5%E5%AE%9E%E7%8E%B0%E4%BD%A0%E7%9A%84AI%E6%A2%A6)，[文章2](https://github.com/benmcq2019/ModelArts-Lab/wiki/%E3%80%90%E5%8D%8E%E4%B8%BA%E4%BA%91-ModelArts-Lab-AI%E5%AE%9E%E6%88%98%E8%90%A5%E3%80%91%E7%AC%AC%E4%BA%8C%E6%9C%9F%E4%B8%AD%E7%9A%84%E6%80%9D%E8%B7%AF1%E4%BD%93%E9%AA%8C)，[文章3](https://github.com/huaweicloud/ModelArts-Lab/blob/master/contrib/%E4%B8%89%E6%9C%9F00%E4%BB%BB%E5%8A%A1%E7%9A%84%E9%83%A8%E5%88%86%E7%90%86%E8%AE%BA%E7%9F%A5%E8%AF%86%E8%A1%A5%E5%85%85.md)
      * 扩展案例：[图像分类扩展案例](https://github.com/huaweicloud/ModelArts-Lab/issues/21)
      * 实际应用案例：