diff --git a/refs/heads/yantai_dev b/refs/heads/yantai_dev
index 819575fc7..da2e6d70b 100644
--- a/refs/heads/yantai_dev
+++ b/refs/heads/yantai_dev
@@ -1 +1 @@
-UPDATE 74ac8e4d72db1e81a6b5fa2da0d965161a870cef 170cbf34b3c860b39c7dd0270677ecb60d5a4a08
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+UPDATE 170cbf34b3c860b39c7dd0270677ecb60d5a4a08 70f65966e61d0ed240ae81e5fcfea64f6e2da8f7
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