.travis.yml in page-object-2.2.6 vs .travis.yml in page-object-2.3.0

- old
+ new

@@ -1,17 +1,17 @@
-sudo: required
-dist: trusty
-rvm:
-  - 2.2.7
-  - 2.3.4
-  - 2.4.1
-cache: bundler
-addons:
-  chrome: stable
-before_script:
- - export DISPLAY=:99.0
- - sh -e /etc/init.d/xvfb start
-
-script: bundle exec rake $RAKE_TASK
-env:
-  - RAKE_TASK=spec
-  - RAKE_TASK=features
\ No newline at end of file
+sudo: required
+dist: trusty
+rvm:
+  - 2.4.6
+  - 2.5.5
+  - 2.6.3
+cache: bundler
+addons:
+  chrome: stable
+before_script:
+ - export DISPLAY=:99.0
+ - sh -e /etc/init.d/xvfb start
+
+script: bundle exec rake $RAKE_TASK
+env:
+  - RAKE_TASK=spec
+  - RAKE_TASK=features