diff --git a/mr/pom.xml b/mr/pom.xml
index 4a7bc0b..004b6b2 100644
--- a/mr/pom.xml
+++ b/mr/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>3.6.1</version>
+            <version>3.16.3</version>
         </dependency>
         <!-- tools -->
         <dependency>