diff --git a/.travis.yml b/.travis.yml
index 697f535..58117b2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,13 @@
 language: scala
 jdk:
   - oraclejdk8
+  - oraclejdk9
 scala:
   - 2.11.12
   - 2.12.4
 env:
   - AKKA_VERSION=
-  - AKKA_VERSION=2.5.10
+  - AKKA_VERSION=2.5.11
 script:
   - sbt ++$TRAVIS_SCALA_VERSION coverage test coverageReport -Dakka.version=$AKKA_VERSION
 after_success: