diff --git a/grpc/pom.xml b/grpc/pom.xml
index 949f26d376..bbdfe9bfb2 100644
--- a/grpc/pom.xml
+++ b/grpc/pom.xml
@@ -71,9 +71,9 @@
     </build>
 
     <properties>
-        <io.grpc.version>1.5.0</io.grpc.version>
-        <os-maven-plugin.version>1.5.0.Final</os-maven-plugin.version>
-        <protobuf-maven-plugin.version>0.5.0</protobuf-maven-plugin.version>
+        <io.grpc.version>1.16.1</io.grpc.version>
+        <os-maven-plugin.version>1.6.1</os-maven-plugin.version>
+        <protobuf-maven-plugin.version>0.6.1</protobuf-maven-plugin.version>
     </properties>
 
 </project>
diff --git a/grpc/src/main/java/org/baeldung/grpc/client/GrpcClient.java b/grpc/src/main/java/org/baeldung/grpc/client/GrpcClient.java
index 1a1809387f..f653e17910 100644
--- a/grpc/src/main/java/org/baeldung/grpc/client/GrpcClient.java
+++ b/grpc/src/main/java/org/baeldung/grpc/client/GrpcClient.java
@@ -10,7 +10,7 @@ import io.grpc.ManagedChannelBuilder;
 public class GrpcClient {
     public static void main(String[] args) throws InterruptedException {
         ManagedChannel channel = ManagedChannelBuilder.forAddress("localhost", 8080)
-            .usePlaintext(true)
+            .usePlaintext()
             .build();
 
         HelloServiceGrpc.HelloServiceBlockingStub stub