diff --git a/src/main/milvus-proto b/src/main/milvus-proto
index bd85c0986..a1c2ac2fd 160000
--- a/src/main/milvus-proto
+++ b/src/main/milvus-proto
@@ -1 +1 @@
-Subproject commit bd85c098660b7d368f1591055f937181e7cf4f70
+Subproject commit a1c2ac2fd2c12e0e6ff73ada3f260966f1cb65e0