Update ruby versions (#163)

* update supported rubygems to include 2.5.0, 2.4.3, 2.3.6, 2.2.9 and jruby 9.1.15.0
olbrich · Dec 27, 2017 · a4c370b · a4c370b
1 parent 3db8ab4
commit a4c370b
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diff --git a/.ruby-version b/.ruby-version
@@ -1 +1 @@
-2.2.8
+2.2.9
diff --git a/.travis.yml b/.travis.yml
@@ -1,11 +1,14 @@
 sudo: false
 language: ruby
 rvm:
-  - 2.4.2
-  - 2.3.5
-  - 2.2.8
+  - 2.5.0
+  - 2.4.3
+  - 2.3.6
+  - 2.2.9
   - ruby-head
-  - jruby-9.1.13.0
+  - jruby-9.1.15.0
+before_install:
+  - gem update --system
 before_script:
   - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
   - chmod +x ./cc-test-reporter