diff --git a/vertx-and-rxjava/pom.xml b/vertx-and-rxjava/pom.xml
index 1793cff1e786..f1307ceea950 100644
--- a/vertx-and-rxjava/pom.xml
+++ b/vertx-and-rxjava/pom.xml
@@ -46,7 +46,7 @@
     </build>
 
     <properties>
-        <vertx.version>3.5.0.Beta1</vertx.version>
+        <vertx.version>4.0.0</vertx.version>
     </properties>
 
 </project>
\ No newline at end of file