Update ruby version used on Travis CI

- Use 2.2 instead of 2.2.5 for the latest v2.2.x - Add more versions including v2.3, v2.4
2018-01-09 11:25:32 +08:00 · 2018-01-09 11:25:32 +08:00 · fb234fecd9
parent a0be92949a
commit fb234fecd9
1 changed files with 3 additions and 1 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -1,6 +1,8 @@
 language: ruby
 rvm:
-  - "2.2.5"
+  - 2.2
+  - 2.3
+  - 2.4
  - ruby-head
 script:
  - bundle exec rake