diff --git a/src/test/java/io/vertx/mqtt/test/client/MqttClientKeepAliveTest.java b/src/test/java/io/vertx/mqtt/test/client/MqttClientKeepAliveTest.java
index 180940ed..5fa71b1b 100644
--- a/src/test/java/io/vertx/mqtt/test/client/MqttClientKeepAliveTest.java
+++ b/src/test/java/io/vertx/mqtt/test/client/MqttClientKeepAliveTest.java
@@ -47,7 +47,7 @@ public class MqttClientKeepAliveTest {
 
   private void startServer(TestContext ctx) {
     Async async = ctx.async();
-    server.listen(1884, "localhost", ctx.asyncAssertSuccess(server -> async.complete()));
+    server.listen(1885, "localhost", ctx.asyncAssertSuccess(server -> async.complete()));
     async.awaitSuccess(10000);
   }
 
diff --git a/src/test/java/io/vertx/mqtt/test/server/MqttServerKeepAliveTest.java b/src/test/java/io/vertx/mqtt/test/server/MqttServerKeepAliveTest.java
index 1bac804f..c973af51 100644
--- a/src/test/java/io/vertx/mqtt/test/server/MqttServerKeepAliveTest.java
+++ b/src/test/java/io/vertx/mqtt/test/server/MqttServerKeepAliveTest.java
@@ -43,7 +43,7 @@ public class MqttServerKeepAliveTest {
 
   private void startServer(TestContext ctx) {
     Async async = ctx.async();
-    server.listen(1884, "localhost", ctx.asyncAssertSuccess(server -> async.complete()));
+    server.listen(1885, "localhost", ctx.asyncAssertSuccess(server -> async.complete()));
     async.awaitSuccess(10000);
   }