diff --git a/java-vertx-sample/pom.xml b/java-vertx-sample/pom.xml
index a105307..a0a9552 100644
--- a/java-vertx-sample/pom.xml
+++ b/java-vertx-sample/pom.xml
@@ -13,7 +13,7 @@
   	<dependency>
       <groupId>io.vertx</groupId>
       <artifactId>vertx-core</artifactId>
-      <version>3.0.0</version>
+      <version>3.5.4</version>
     </dependency>
     <dependency>
 	  <groupId>junit</groupId>