diff --git a/producer_grpc/pom.xml b/producer_grpc/pom.xml
index 95bf94c4..73d4dea5 100644
--- a/producer_grpc/pom.xml
+++ b/producer_grpc/pom.xml
@@ -27,7 +27,7 @@
 		<dependency>
 			<groupId>com.google.protobuf</groupId>
 			<artifactId>protobuf-java</artifactId>
-			<version>3.21.2</version>
+			<version>3.21.7</version>
 		</dependency>
 		<dependency>
 			<groupId>com.squareup.okhttp3</groupId>