diff --git a/refs/heads/yantai_master b/refs/heads/yantai_master
index d5124bc3a..1202a0795 100644
--- a/refs/heads/yantai_master
+++ b/refs/heads/yantai_master
@@ -1 +1 @@
-UPDATE 24636a095006ff6001d72d40d470b7669dc9dfde 6ac964d805f85d809ba0872bee7e0afa0ad489f3
\ No newline at end of file
+UPDATE 6ac964d805f85d809ba0872bee7e0afa0ad489f3 8de21f47dfb72a47507076fb52c43e2cbacfd891
\ No newline at end of file