diff --git a/grpc-client/pom.xml b/grpc-client/pom.xml
index 42b4934..4d3170c 100644
--- a/grpc-client/pom.xml
+++ b/grpc-client/pom.xml
@@ -15,7 +15,7 @@
 		<dependency>
 			<groupId>com.google.protobuf</groupId>
 			<artifactId>protobuf-java</artifactId>
-			<version>3.6.1</version>
+			<version>3.16.1</version>
 		</dependency>
 
 		<dependency>