diff --git a/.travis.yml b/.travis.yml
index d6a74d7..a687656 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,14 @@
+dist: trusty
+sudo: false
 language: ruby
+cache: bundler
 rvm:
-  - 2.2.4
-  - 2.3.0
-  - 2.4.2
+  - 2.2.10
+  - 2.3.7
+  - 2.4.4
   - 2.5.1
+  - ruby-head
+  - jruby-9.2.0.0
+
+before_install:
+  - gem install bundler