diff --git a/authenticator/pom.xml b/authenticator/pom.xml
index 254d4b7..9c43cc1 100644
--- a/authenticator/pom.xml
+++ b/authenticator/pom.xml
@@ -40,7 +40,7 @@
     <dependency>
       <groupId>io.vertx</groupId>
       <artifactId>vertx-config</artifactId>
-      <version>3.9.4</version>
+      <version>4.1.2</version>
     </dependency>
     <!-- https://mvnrepository.com/artifact/io.vertx/vertx-rx-java2 -->
     <dependency>