diff --git a/vertx/pom.xml b/vertx/pom.xml
index befd4c45bb..c566681073 100644
--- a/vertx/pom.xml
+++ b/vertx/pom.xml
@@ -64,9 +64,8 @@
     </build>
 
     <properties>
-        <vertx.version>3.0.0</vertx.version>
-        <testng.version>6.10</testng.version>
-        <maven-shade-plugin.version>2.3</maven-shade-plugin.version>
+        <vertx.version>3.8.1</vertx.version>
+        <maven-shade-plugin.version>3.2.1</maven-shade-plugin.version>
     </properties>
 
 </project>
diff --git a/vertx/src/test/java/com/baeldung/RestServiceVerticleIntegrationTest.java b/vertx/src/test/java/com/baeldung/RestServiceVerticleIntegrationTest.java
deleted file mode 100644
index 40fa6c7220..0000000000
--- a/vertx/src/test/java/com/baeldung/RestServiceVerticleIntegrationTest.java
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.baeldung;
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import com.baeldung.rest.RestServiceVerticle;
-
-import io.vertx.core.Vertx;
-import io.vertx.ext.unit.Async;
-import io.vertx.ext.unit.TestContext;
-import io.vertx.ext.unit.junit.VertxUnitRunner;
-
-@RunWith(VertxUnitRunner.class)
-public class RestServiceVerticleIntegrationTest {
-
-    private Vertx vertx;
-
-    @Before
-    public void setup(TestContext testContext) {
-        vertx = Vertx.vertx();
-
-        vertx.deployVerticle(RestServiceVerticle.class.getName(), testContext.asyncAssertSuccess());
-    }
-
-    @After
-    public void tearDown(TestContext testContext) {
-        vertx.close(testContext.asyncAssertSuccess());
-    }
-
-    @Test
-    public void givenId_whenReceivedArticle_thenSuccess(TestContext testContext) {
-        final Async async = testContext.async();
-
-        vertx.createHttpClient()
-                .getNow(8080, "localhost", "/api/baeldung/articles/article/12345", response -> {
-                    response.handler(responseBody -> {
-                        testContext.assertTrue(responseBody.toString()
-                                .contains("\"id\" : \"12345\""));
-                        async.complete();
-                    });
-                });
-    }
-
-}
diff --git a/vertx/src/test/java/com/baeldung/RestServiceVerticleUnitTest.java b/vertx/src/test/java/com/baeldung/RestServiceVerticleUnitTest.java
new file mode 100644
index 0000000000..aab841f5bb
--- /dev/null
+++ b/vertx/src/test/java/com/baeldung/RestServiceVerticleUnitTest.java
@@ -0,0 +1,66 @@
+package com.baeldung;
+
+import java.io.IOException;
+import java.net.ServerSocket;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import com.baeldung.rest.RestServiceVerticle;
+
+import io.vertx.core.DeploymentOptions;
+import io.vertx.core.Vertx;
+import io.vertx.core.json.JsonObject;
+import io.vertx.ext.unit.Async;
+import io.vertx.ext.unit.TestContext;
+import io.vertx.ext.unit.junit.VertxUnitRunner;
+
+@RunWith(VertxUnitRunner.class)
+public class RestServiceVerticleUnitTest {
+
+    private Vertx vertx;
+
+    private int port = 8081;
+
+    @BeforeClass
+    public static void beforeClass() {
+
+    }
+
+    @Before
+    public void setup(TestContext testContext) throws IOException {
+        vertx = Vertx.vertx();
+
+        // Pick an available and random
+        ServerSocket socket = new ServerSocket(0);
+        port = socket.getLocalPort();
+        socket.close();
+
+        DeploymentOptions options = new DeploymentOptions().setConfig(new JsonObject().put("http.port", port));
+
+        vertx.deployVerticle(RestServiceVerticle.class.getName(), options, testContext.asyncAssertSuccess());
+    }
+
+    @After
+    public void tearDown(TestContext testContext) {
+        vertx.close(testContext.asyncAssertSuccess());
+    }
+
+    @Test
+    public void givenId_whenReceivedArticle_thenSuccess(TestContext testContext) {
+        final Async async = testContext.async();
+
+        vertx.createHttpClient()
+            .getNow(port, "localhost", "/api/baeldung/articles/article/12345", response -> {
+                response.handler(responseBody -> {
+                    testContext.assertTrue(responseBody.toString()
+                        .contains("\"id\" : \"12345\""));
+                    async.complete();
+                });
+            });
+    }
+
+}
diff --git a/vertx/src/test/java/com/baeldung/SimpleServerVerticleIntegrationTest.java b/vertx/src/test/java/com/baeldung/SimpleServerVerticleIntegrationTest.java
deleted file mode 100644
index 194f403e25..0000000000
--- a/vertx/src/test/java/com/baeldung/SimpleServerVerticleIntegrationTest.java
+++ /dev/null
@@ -1,44 +0,0 @@
-package com.baeldung;
-
-import io.vertx.core.Vertx;
-import io.vertx.ext.unit.Async;
-import io.vertx.ext.unit.TestContext;
-import io.vertx.ext.unit.junit.VertxUnitRunner;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-@RunWith(VertxUnitRunner.class)
-public class SimpleServerVerticleIntegrationTest {
-    private Vertx vertx;
-
-    @Before
-    public void setup(TestContext testContext) {
-        vertx = Vertx.vertx();
-
-        vertx.deployVerticle(SimpleServerVerticle.class.getName(), testContext.asyncAssertSuccess());
-    }
-
-    @After
-    public void tearDown(TestContext testContext) {
-        vertx.close(testContext.asyncAssertSuccess());
-    }
-
-    @Test
-    public void whenReceivedResponse_thenSuccess(TestContext testContext) {
-        final Async async = testContext.async();
-
-        vertx
-          .createHttpClient()
-          .getNow(8080, "localhost", "/",
-            response -> response.handler(responseBody -> {
-              testContext.assertTrue(responseBody
-                .toString()
-                .contains("Welcome"));
-              async.complete();
-          }));
-    }
-
-}
-
diff --git a/vertx/src/test/java/com/baeldung/SimpleServerVerticleUnitTest.java b/vertx/src/test/java/com/baeldung/SimpleServerVerticleUnitTest.java
new file mode 100644
index 0000000000..761577d5f3
--- /dev/null
+++ b/vertx/src/test/java/com/baeldung/SimpleServerVerticleUnitTest.java
@@ -0,0 +1,55 @@
+package com.baeldung;
+
+import io.vertx.core.DeploymentOptions;
+import io.vertx.core.Vertx;
+import io.vertx.core.json.JsonObject;
+import io.vertx.ext.unit.Async;
+import io.vertx.ext.unit.TestContext;
+import io.vertx.ext.unit.junit.VertxUnitRunner;
+
+import java.io.IOException;
+import java.net.ServerSocket;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(VertxUnitRunner.class)
+public class SimpleServerVerticleUnitTest {
+    private Vertx vertx;
+
+    private int port = 8081;
+
+    @Before
+    public void setup(TestContext testContext) throws IOException {
+        vertx = Vertx.vertx();
+
+        // Pick an available and random
+        ServerSocket socket = new ServerSocket(0);
+        port = socket.getLocalPort();
+        socket.close();
+
+        DeploymentOptions options = new DeploymentOptions().setConfig(new JsonObject().put("http.port", port));
+
+        vertx.deployVerticle(SimpleServerVerticle.class.getName(), options, testContext.asyncAssertSuccess());
+    }
+
+    @After
+    public void tearDown(TestContext testContext) {
+        vertx.close(testContext.asyncAssertSuccess());
+    }
+
+    @Test
+    public void whenReceivedResponse_thenSuccess(TestContext testContext) {
+        final Async async = testContext.async();
+
+        vertx.createHttpClient()
+            .getNow(port, "localhost", "/", response -> response.handler(responseBody -> {
+                testContext.assertTrue(responseBody.toString()
+                    .contains("Welcome"));
+                async.complete();
+            }));
+    }
+
+}