diff --git a/grpc/grpc-web/pom.xml b/grpc/grpc-web/pom.xml
index 760141a2..0a0acdaf 100644
--- a/grpc/grpc-web/pom.xml
+++ b/grpc/grpc-web/pom.xml
@@ -16,7 +16,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <!-- gRPC versions -->
         <grpc.version>1.43.1</grpc.version>
-        <protobuf.version>3.19.2</protobuf.version>
+        <protobuf.version>3.19.6</protobuf.version>
     </properties>
 
     <dependencies>