diff --git a/.gitmodules b/.gitmodules
index 4b23427..b637009 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,4 @@
 [submodule "metadef"]
 	path = metadef
 	url = https://gitee.com/ascend/metadef.git
-	branch = master
+	branch = r1.3.0
diff --git a/OWNERS b/OWNERS
index 8c42c84..490c197 100644
--- a/OWNERS
+++ b/OWNERS
@@ -2,6 +2,9 @@ approvers:
 - ji_chen 
 - wqtshg
 - ljl0711
+- startzgf168
+- lbisdaddy
+- andylhy
 reviewers:
 - xchu42
 - sheng-nan
diff --git a/metadef b/metadef
index deebd59..140538e 160000
--- a/metadef
+++ b/metadef
@@ -1 +1 @@
-Subproject commit deebd59d7ea015d7907db525596213492fe021b0
+Subproject commit 140538eadb161278f1c733e7850bfaba65cf665e