diff --git a/.travis.yml b/.travis.yml
index 1033bc1..8ce6f0e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ dist: trusty
 rvm:
   # MRI
   - ruby-head
+  - 2.6
   - 2.5
   - 2.4
   - 2.3
@@ -19,10 +20,8 @@ rvm:
   - ree
   # JRuby
   - jruby-head
-  - jruby-9.1.15.0 # Specific version to work around https://github.com/travis-ci/travis-ci/issues/9049
+  - jruby-9.1
   - jruby-9.0
-  - jruby-19mode
-  - jruby-18mode
   # Rubinius
   - rubinius-3