diff --git a/refs/heads/yantai_dev b/refs/heads/yantai_dev
index e00a97857..56a4f05a1 100644
--- a/refs/heads/yantai_dev
+++ b/refs/heads/yantai_dev
@@ -1 +1 @@
-UPDATE 62f8d9e4660eef125de20f660adfec9c47e71d3d a2597d2256870fa3b87f601a406dab08fd72ea1c
\ No newline at end of file
+UPDATE a2597d2256870fa3b87f601a406dab08fd72ea1c 21e90fadcb943338c46c7ef175f6fad41595a6b6
\ No newline at end of file