diff --git a/.travis.yml b/.travis.yml
index 8b3bcb3..66ca3ab 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,8 @@ language: java
 # to try to workaround this issue: https://github.com/travis-ci/travis-ci/issues/6593
 sudo: true
 
+# TODO: get this working with java11 and the need for forkCount=1 in the surefire plugin
+#script: mvn verify jacoco:report coveralls:report -DrepoToken=dplZ1J1AfjFK3hHAj0OV8IRneKprs4Glb -Ptravis
 script: mvn verify -Ptravis
 
 bundler_args: --retry 6
diff --git a/pom.xml b/pom.xml
index fbc6d71..42e6cc4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -67,7 +67,7 @@
         <jolokia.version>1.3.7</jolokia.version>
         <metrics.version>3.1.2</metrics.version>
         <rxjava.version>2.1.3</rxjava.version>
-        <vertx.version>3.5.0</vertx.version>
+        <vertx.version>3.5.4</vertx.version>
         <slf4j.version>1.7.25</slf4j.version>
         <rxmongo.version>1.5.0</rxmongo.version>
         <commons.lang.version>3.6</commons.lang.version>