diff --git a/backend/pom.xml b/backend/pom.xml
index 63a11f6..72d7c01 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -64,7 +64,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>3.7.0</version>
+            <version>3.16.1</version>
         </dependency>
         <dependency>
             <groupId>com.alibaba</groupId>