diff --git a/dumpling-overview.md b/dumpling-overview.md
index 577e9f155b30b..515594f29c4db 100644
--- a/dumpling-overview.md
+++ b/dumpling-overview.md
@@ -10,6 +10,10 @@ This document introduces the data export tool - [Dumpling](https://github.com/pi
 
 For backups of SST files (key-value pairs) or backups of incremental data that are not sensitive to latency, refer to [BR](/br/backup-and-restore-tool.md). For real-time backups of incremental data, refer to [TiCDC](/ticdc/ticdc-overview.md).
 
+Added a video for test. 
+
+<video src="https://tidb-docs.s3.us-east-2.amazonaws.com/Lesson+18+%E8%AF%BE%E7%A8%8B.mp4" width="800px" height="600px" controls="controls"></video>
+
 > **Note:**
 >
 > PingCAP previously maintained a fork of the [mydumper project](https://github.com/maxbube/mydumper) with enhancements specific to TiDB. This fork has since been replaced by [Dumpling](/dumpling-overview.md), which has been rewritten in Go, and supports more optimizations that are specific to TiDB. It is strongly recommended that you use Dumpling instead of mydumper.
diff --git a/scripts/verify-link-anchors.sh b/scripts/verify-link-anchors.sh
index 445159d537f15..77faf1fdcd30c 100755
--- a/scripts/verify-link-anchors.sh
+++ b/scripts/verify-link-anchors.sh
@@ -7,7 +7,7 @@
 ROOT=$(unset CDPATH && cd $(dirname "${BASH_SOURCE[0]}")/.. && pwd)
 cd $ROOT
 
-npm install -g remark-cli remark-lint breeswish/remark-lint-pingcap-docs-anchor
+npm install -g remark-cli@9.0.0 remark-lint@8.0.0 breeswish/remark-lint-pingcap-docs-anchor
 
 echo "info: checking links anchors under $ROOT directory..."