diff --git a/pom.xml b/pom.xml
index c53c086..0b7e7b7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,7 +16,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <maven.compiler.source>1.7</maven.compiler.source>
     <maven.compiler.target>1.7</maven.compiler.target>
-    <protobuf.version>2.5.0</protobuf.version>
+    <protobuf.version>3.16.3</protobuf.version>
   </properties>
 
   <dependencies>