diff --git a/jubo-chat-newserver/pom.xml b/jubo-chat-newserver/pom.xml
index 39dba08..049863e 100644
--- a/jubo-chat-newserver/pom.xml
+++ b/jubo-chat-newserver/pom.xml
@@ -66,7 +66,7 @@
 		<dependency>
 		    <groupId>com.google.protobuf</groupId>
 		    <artifactId>protobuf-java</artifactId>
-		    <version>3.5.1</version>
+		    <version>3.16.3</version>
 		</dependency>
 		
 		<dependency>