diff --git a/refs/heads/yantai_dev b/refs/heads/yantai_dev
index f324640f6..2f3f4e439 100644
--- a/refs/heads/yantai_dev
+++ b/refs/heads/yantai_dev
@@ -1 +1 @@
-UPDATE 5bbf14ff630f15526b02c4253c46ee3525256ebb 4bbf60852c74671c2de2dd63bd2cdcb65508f74f
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+UPDATE 4bbf60852c74671c2de2dd63bd2cdcb65508f74f 86eb9cf0dda792d31bbb06d1399427f7532b4a6a
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