diff --git a/nameNode/pom.xml b/nameNode/pom.xml
index 263e1cb..ac900f8 100644
--- a/nameNode/pom.xml
+++ b/nameNode/pom.xml
@@ -26,7 +26,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>3.5.1</version>
+            <version>3.16.3</version>
         </dependency>
         <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
         <dependency>