diff --git a/metadef b/metadef
index 86781b7..620e9b9 160000
--- a/metadef
+++ b/metadef
@@ -1 +1 @@
-Subproject commit 86781b7e8ce21d2b901406cc3619d6bea2aeb18e
+Subproject commit 620e9b9ac3210db3e4cf47babfb23d248bb9f17e
diff --git a/parser/common/proto/insert_op.proto b/parser/common/proto/insert_op.proto
index 6c3287a..af0edca 100644
--- a/parser/common/proto/insert_op.proto
+++ b/parser/common/proto/insert_op.proto
@@ -88,6 +88,7 @@ message AippOpParams {
 	int32 right_padding_size = 69;
 	int32 top_padding_size = 70;
 	int32 bottom_padding_size = 71;
+	float padding_value = 72;
 
 	int32 mean_chn_0 = 10;
 	int32 mean_chn_1 = 11;
diff --git a/parser/proto/insert_op.proto b/parser/proto/insert_op.proto
index 6c3287a..af0edca 100644
--- a/parser/proto/insert_op.proto
+++ b/parser/proto/insert_op.proto
@@ -88,6 +88,7 @@ message AippOpParams {
 	int32 right_padding_size = 69;
 	int32 top_padding_size = 70;
 	int32 bottom_padding_size = 71;
+	float padding_value = 72;
 
 	int32 mean_chn_0 = 10;
 	int32 mean_chn_1 = 11;
diff --git a/parser/tensorflow/proto/insert_op.proto b/parser/tensorflow/proto/insert_op.proto
index 6c3287a..af0edca 100644
--- a/parser/tensorflow/proto/insert_op.proto
+++ b/parser/tensorflow/proto/insert_op.proto
@@ -88,6 +88,7 @@ message AippOpParams {
 	int32 right_padding_size = 69;
 	int32 top_padding_size = 70;
 	int32 bottom_padding_size = 71;
+	float padding_value = 72;
 
 	int32 mean_chn_0 = 10;
 	int32 mean_chn_1 = 11;