diff --git a/disruptor/DisruptorDemo/pom.xml b/disruptor/DisruptorDemo/pom.xml
index 58b8b18..da4ba6b 100644
--- a/disruptor/DisruptorDemo/pom.xml
+++ b/disruptor/DisruptorDemo/pom.xml
@@ -14,7 +14,7 @@
         <dependency>
             <groupId>io.vertx</groupId>
             <artifactId>vertx-web</artifactId>
-            <version>3.7.1</version>
+            <version>3.9.4</version>
         </dependency>
         <dependency>
             <groupId>io.vertx</groupId>