diff --git a/google-protocol-buffer/pom.xml b/google-protocol-buffer/pom.xml
index ff1a373..ebe4444 100644
--- a/google-protocol-buffer/pom.xml
+++ b/google-protocol-buffer/pom.xml
@@ -25,7 +25,7 @@
 		<!--grpc版本号-->
 		<grpc.version>1.7.0</grpc.version>
 		<!--protobuf 版本号-->
-		<protobuf.version>3.4.0</protobuf.version>
+		<protobuf.version>3.16.3</protobuf.version>
 	</properties>
 
 	<dependencies>