diff --git a/builders/testdata/java/vertx-helloworld/pom.xml b/builders/testdata/java/vertx-helloworld/pom.xml
index c6095de..b7b9c96 100644
--- a/builders/testdata/java/vertx-helloworld/pom.xml
+++ b/builders/testdata/java/vertx-helloworld/pom.xml
@@ -32,7 +32,7 @@ limitations under the License.
     <dependency>
       <groupId>io.vertx</groupId>
       <artifactId>vertx-core</artifactId>
-      <version>3.8.5</version>
+      <version>4.5.21</version>
     </dependency>
     <dependency>
       <groupId>io.vertx</groupId>