diff --git a/refs/heads/yantai_master b/refs/heads/yantai_master
index 86a94e460..b8e0c6bda 100644
--- a/refs/heads/yantai_master
+++ b/refs/heads/yantai_master
@@ -1 +1 @@
-UPDATE 85f3bed16da69010b84021bdec1a999a00cc324d c74ea1b8339674fa32d8855df804d19db0a7de26
\ No newline at end of file
+UPDATE c74ea1b8339674fa32d8855df804d19db0a7de26 b9b74ac980dd6fde0d5974a408c62d6e8696fcbf
\ No newline at end of file