diff --git a/samples/server/petstore/kotlin/vertx/pom.xml b/samples/server/petstore/kotlin/vertx/pom.xml
index 5b055dc12deb..9056bb9d3977 100644
--- a/samples/server/petstore/kotlin/vertx/pom.xml
+++ b/samples/server/petstore/kotlin/vertx/pom.xml
@@ -16,7 +16,7 @@
         <kotlin.compiler.incremental>true</kotlin.compiler.incremental>
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
         <junit.version>4.13.2</junit.version>
-        <vertx.version>3.9.12</vertx.version>
+        <vertx.version>4.5.22</vertx.version>
         <maven-compiler-plugin.version>3.10.0</maven-compiler-plugin.version>
         <vertx-openapi-router.version>1.0.2</vertx-openapi-router.version>
         <maven-shade-plugin.version>3.2.4</maven-shade-plugin.version>