update gem system to prevent errors with some gems

[github/fretlink/pronto-hlint.git] / .travis.yml

diff --git a/.travis.yml b/.travis.yml
index f8cecafe905f5492819a27cbe2380d70e6ae4e83..090896f91b5eb42a4cc0ee607f62bdf1b69ac993 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,10 +2,11 @@ sudo: required
 dist: trusty
 language: ruby
 before_script:
+- gem update --system
 - npm install -g eslint
 rvm:
-- 1.9.3
 - 2.0.0
 - 2.1
 - 2.2
-- 2.3.0
+- 2.3.3
+- 2.4.0