diff --git a/hello-vertx/pom.xml b/hello-vertx/pom.xml
index a8471e0..8a96dc0 100644
--- a/hello-vertx/pom.xml
+++ b/hello-vertx/pom.xml
@@ -26,14 +26,14 @@
       <dependency>
         <groupId>io.vertx</groupId>
         <artifactId>vertx-stack-depchain</artifactId>
-        <version>4.5.18</version>
+        <version>5.0.5</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
       <dependency>
         <groupId>org.apache.logging.log4j</groupId>
         <artifactId>log4j-bom</artifactId>
-        <version>2.24.3</version>
+        <version>2.25.2</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
@@ -45,6 +45,10 @@
       <groupId>io.vertx</groupId>
       <artifactId>vertx-core</artifactId>
     </dependency>
+    <dependency>
+      <groupId>io.vertx</groupId>
+      <artifactId>vertx-launcher-application</artifactId>
+    </dependency>
     <dependency>
       <groupId>io.vertx</groupId>
       <artifactId>vertx-web</artifactId>
@@ -52,7 +56,7 @@
     <dependency>
       <groupId>org.folio.okapi</groupId>
       <artifactId>okapi-common</artifactId>
-      <version>6.2.1</version>
+      <version>7.0.1</version>
     </dependency>
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>
@@ -68,7 +72,7 @@
     <plugins>
       <plugin>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.14.0</version>
+        <version>3.14.1</version>
         <configuration>
           <release>21</release>
           <compilerArgument>-Xlint:unchecked</compilerArgument>
@@ -135,7 +139,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-shade-plugin</artifactId>
-        <version>3.6.0</version>
+        <version>3.6.1</version>
         <executions>
           <execution>
             <phase>package</phase>
diff --git a/hello-vertx/src/main/java/org/folio/sample/MainVerticle.java b/hello-vertx/src/main/java/org/folio/sample/MainVerticle.java
index c21eca3..e13e35a 100644
--- a/hello-vertx/src/main/java/org/folio/sample/MainVerticle.java
+++ b/hello-vertx/src/main/java/org/folio/sample/MainVerticle.java
@@ -1,7 +1,7 @@
 package org.folio.sample;
 
-import io.vertx.core.AbstractVerticle;
-import io.vertx.core.Promise;
+import io.vertx.core.Future;
+import io.vertx.core.VerticleBase;
 import io.vertx.ext.web.Router;
 import io.vertx.ext.web.RoutingContext;
 import java.lang.management.ManagementFactory;
@@ -14,37 +14,35 @@
  * The main verticle. This is the HTTP server that accepts incoming requests and
  * routes them to the relevant handlers.
  */
-public class MainVerticle extends AbstractVerticle {
+public class MainVerticle extends VerticleBase {
 
-  private static final Logger logger = LogManager.getLogger(MainVerticle.class);
+  private static final Logger LOGGER = LogManager.getLogger(MainVerticle.class);
 
   @Override
-  public void start(Promise<Void> startPromise) {
+  public Future<?> start() {
 
-    final int port = Integer.parseInt(System.getProperty("port", "8080"));
-    logger.info("Starting hello "
-        + ManagementFactory.getRuntimeMXBean().getName()
-        + " on port " + port);
+    var port = Integer.parseInt(System.getProperty("port", "8080"));
+    LOGGER.info("Starting hello {} on port {}",
+        ManagementFactory.getRuntimeMXBean().getName(),
+        port);
 
     // Define the routes for HTTP requests.
-    Router router = Router.router(vertx);
+    var router = Router.router(vertx);
     router.get("/hello").handler(this::getHandle);
     router.post("/hello").handler(this::postHandle);
 
     // And start listening
-    vertx.createHttpServer()
-      .requestHandler(router)
-      .listen(port)
-      .onSuccess(x -> logger.debug("Hello: Succeeded in starting the listener"))
-      .onFailure(e -> logger.error("Hello failed to start the listener:", e))
-      .<Void>mapEmpty()
-      .onComplete(startPromise);
+    return vertx.createHttpServer()
+        .requestHandler(router)
+        .listen(port)
+        .onSuccess(x -> LOGGER.debug("Hello: Succeeded in starting the listener"))
+        .onFailure(e -> LOGGER.error("Hello failed to start the listener: {}", e.getMessage(), e));
   }
 
   // Handler for the GET requests.
   // Just replies "Hello, world" in plain text
   public void getHandle(RoutingContext ctx) {
-    logger.debug("Hello: handling a GET request");
+    LOGGER.debug("Hello: handling a GET request");
     responseText(ctx, 200).end("Hello, world\n");
   }
 
@@ -52,7 +50,7 @@ public void getHandle(RoutingContext ctx) {
   // Replies with a JSON structure that contains all posted data
   // As long as the input data is valid JSON, the output should be too.
   public void postHandle(RoutingContext ctx) {
-    logger.debug("Hello: handling a POST request");
+    LOGGER.debug("Hello: handling a POST request");
     if (! "application/json".equals(ctx.request().getHeader("Content-Type"))) {
       responseError(ctx, 400, "Content-Type must be application/json");
       return;
diff --git a/simple-vertx/pom.xml b/simple-vertx/pom.xml
index 6af5731..887b798 100644
--- a/simple-vertx/pom.xml
+++ b/simple-vertx/pom.xml
@@ -27,14 +27,14 @@
       <dependency>
         <groupId>io.vertx</groupId>
         <artifactId>vertx-stack-depchain</artifactId>
-        <version>4.5.18</version>
+        <version>5.0.5</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
       <dependency>
         <groupId>org.apache.logging.log4j</groupId>
         <artifactId>log4j-bom</artifactId>
-        <version>2.24.3</version>
+        <version>2.25.2</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
@@ -46,6 +46,10 @@
       <groupId>io.vertx</groupId>
       <artifactId>vertx-core</artifactId>
     </dependency>
+    <dependency>
+      <groupId>io.vertx</groupId>
+      <artifactId>vertx-launcher-application</artifactId>
+    </dependency>
     <dependency>
       <groupId>io.vertx</groupId>
       <artifactId>vertx-web</artifactId>
@@ -57,7 +61,7 @@
     <dependency>
       <groupId>org.folio.okapi</groupId>
       <artifactId>okapi-common</artifactId>
-      <version>6.2.1</version>
+      <version>7.0.1</version>
     </dependency>
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>
@@ -73,7 +77,7 @@
     <plugins>
       <plugin>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.14.0</version>
+        <version>3.14.1</version>
         <configuration>
           <release>21</release>
           <compilerArgument>-Xlint:unchecked</compilerArgument>
@@ -136,7 +140,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-shade-plugin</artifactId>
-        <version>3.6.0</version>
+        <version>3.6.1</version>
         <executions>
           <execution>
             <phase>package</phase>
diff --git a/simple-vertx/src/main/java/org/folio/simple/MainVerticle.java b/simple-vertx/src/main/java/org/folio/simple/MainVerticle.java
index 2e3a5a4..337e52f 100644
--- a/simple-vertx/src/main/java/org/folio/simple/MainVerticle.java
+++ b/simple-vertx/src/main/java/org/folio/simple/MainVerticle.java
@@ -1,7 +1,9 @@
 package org.folio.simple;
 
 import io.vertx.core.AbstractVerticle;
+import io.vertx.core.Future;
 import io.vertx.core.Promise;
+import io.vertx.core.VerticleBase;
 import io.vertx.core.http.HttpClient;
 import io.vertx.ext.web.Router;
 import io.vertx.ext.web.handler.BodyHandler;
@@ -13,12 +15,12 @@
  * The main verticle. This is the HTTP server that accepts incoming requests and
  * routes them to the relevant handlers.
  */
-public class MainVerticle extends AbstractVerticle {
+public class MainVerticle extends VerticleBase {
 
-  private static final Logger logger = LogManager.getLogger(MainVerticle.class);
+  private static final Logger LOGGER = LogManager.getLogger(MainVerticle.class);
 
   @Override
-  public void start(Promise<Void> startPromise) {
+  public Future<?> start() {
     /**
      * All services of one Verticle instance should share a single HttpClient (or WebClient)
      * to allow for HTTP pooling and HTTP pipe-lining and to avoid HttpClient socket leaks.
@@ -26,25 +28,23 @@ public void start(Promise<Void> startPromise) {
     final HttpClient httpClient = vertx.createHttpClient();
     final SimpleWebService simple = new SimpleWebService(httpClient);
 
-    final int port = Integer.parseInt(System.getProperty("port", "8080"));
-    logger.info("Starting simple "
-            + ManagementFactory.getRuntimeMXBean().getName()
-            + " on port " + port);
+    var port = Integer.parseInt(System.getProperty("port", "8080"));
+    LOGGER.info("Starting simple {} on port {}",
+        ManagementFactory.getRuntimeMXBean().getName(),
+        port);
 
     // Define the routes for HTTP requests. Both GET and POST go to the same
     // one here...
-    Router router = Router.router(vertx);
-    router.get("/simple").handler(simple::get_handle);
-    router.post("/*").handler(BodyHandler.create()); // Tell vertx we want to the whole POST body in the handler
-    router.post("/simple").handler(simple::post_handle);
+    var router = Router.router(vertx);
+    router.get("/simple").handler(simple::getHandle);
+    router.post("/*").handler(BodyHandler.create()); // Tell vertx we want the whole POST body in the handler
+    router.post("/simple").handler(simple::postHandle);
 
     // And start listening
-    vertx.createHttpServer()
-      .requestHandler(router)
-      .listen(port)
-      .onSuccess(x -> logger.debug("Succeeded in starting the listener for simple"))
-      .onFailure(e -> logger.error("simple failed: " + e.getMessage(), e))
-      .<Void>mapEmpty()
-      .onComplete(startPromise);
+    return vertx.createHttpServer()
+        .requestHandler(router)
+        .listen(port)
+        .onSuccess(x -> LOGGER.debug("Succeeded in starting the listener for simple"))
+        .onFailure(e -> LOGGER.error("simple failed: {}", e.getMessage(), e));
   }
 }
diff --git a/simple-vertx/src/main/java/org/folio/simple/SimpleWebService.java b/simple-vertx/src/main/java/org/folio/simple/SimpleWebService.java
index 94556ed..eb9c1bd 100644
--- a/simple-vertx/src/main/java/org/folio/simple/SimpleWebService.java
+++ b/simple-vertx/src/main/java/org/folio/simple/SimpleWebService.java
@@ -17,7 +17,7 @@
  * @author heikki
  */
 public class SimpleWebService {
-  private static final Logger logger = LogManager.getLogger(SimpleWebService.class);
+  private static final Logger LOGGER = LogManager.getLogger(SimpleWebService.class);
   private final HttpClient httpClient;
 
   public SimpleWebService(HttpClient httpClient) {
@@ -26,10 +26,10 @@ public SimpleWebService(HttpClient httpClient) {
 
   // Handler for the GET requests.
   // Calls the hello module, and reports its success
-  public void get_handle(RoutingContext ctx) {
-    logger.debug("Simple: Handling a GET request. About to call the hello module");
-    OkapiClient okapiClient = new OkapiClient(httpClient, ctx);
-    logger.debug("Contacting Okapi via " + okapiClient.getOkapiUrl());
+  public void getHandle(RoutingContext ctx) {
+    LOGGER.debug("Simple: Handling a GET request. About to call the hello module");
+    var okapiClient = new OkapiClient(httpClient, ctx);
+    LOGGER.debug("Contacting Okapi via {}", okapiClient.getOkapiUrl());
     okapiClient.get("/hello")
       .onSuccess(body -> responseText(ctx, 200).end("Hello module says: '" + body + "'"))
       .onFailure(e -> responseError(ctx, 500, "Hello failed with " + e.getMessage()));
@@ -38,24 +38,24 @@ public void get_handle(RoutingContext ctx) {
   // Handler for the POST request
   // POSTs the same request to the hello module, and returns its response in a
   // new Json response
-  public void post_handle(RoutingContext ctx) {
+  public void postHandle(RoutingContext ctx) {
     if (! "application/json".equals(ctx.request().getHeader("Content-Type"))) {
       responseError(ctx, 400, "Only accepts Content-Type application/json");
       return;
     }
-    String reqData = ctx.getBodyAsString();
-    logger.debug("Simple: Received a POST of " + reqData);
-    OkapiClient okapiClient = new OkapiClient(httpClient, ctx);
+    var reqData = ctx.body().asString();
+    LOGGER.debug("Simple: Received a POST of {}", reqData);
+    var okapiClient = new OkapiClient(httpClient, ctx);
     okapiClient.setHeaders(Map.of(
         "Content-Type", "application/json",
         "X-Okapi-Tenant", ctx.request().getHeader("X-Okapi-Tenant")));
     okapiClient.post("/hello", reqData)
       .onSuccess(helloRes -> {
-        JsonObject hjo = new JsonObject(helloRes);
-        String greeting = hjo.getString("greeting");
-        logger.info("Got a greeting from hello: " + greeting);
-        hjo.put("simple", "Simple module did indeed call the hello module!");
-        String simpleRes = hjo.encodePrettily();
+        var jsonObject = new JsonObject(helloRes);
+        var greeting = jsonObject.getString("greeting");
+        LOGGER.info("Got a greeting from hello: {}", greeting);
+        jsonObject.put("simple", "Simple module did indeed call the hello module!");
+        var simpleRes = jsonObject.encodePrettily();
         responseJson(ctx, 200).end(simpleRes);
       })
       .onFailure(e -> responseError(ctx, 500, "Hello failed with " + e.getMessage()));