diff --git a/.travis.yml b/.travis.yml
index 2743ae0bc..3871823c4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,7 +18,7 @@ language: java
 
 jdk:
 - oraclejdk8
-# - oraclejdk9
+- openjdk11
 
 env:
   global: