diff --git a/frontends/http/build.gradle b/frontends/http/build.gradle
index b85ad41..35c8883 100644
--- a/frontends/http/build.gradle
+++ b/frontends/http/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
     ext {
-        version_vertx = '3.4.2'
+        version_vertx = '4.3.4'
     }
     dependencies {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"