diff --git a/refs/heads/yantai_master b/refs/heads/yantai_master
index a58541457..cdc500096 100644
--- a/refs/heads/yantai_master
+++ b/refs/heads/yantai_master
@@ -1 +1 @@
-UPDATE 7e5e8f2085f997b431021cc411bd8d0cd285e90d 8e6d5e0b9aa322174639e0e12b7969701290d146
\ No newline at end of file
+UPDATE 8e6d5e0b9aa322174639e0e12b7969701290d146 4949dd5ccf8737c14c195ca7a2a34885638f977a
\ No newline at end of file