Add supported Rubies

dtaniwaki · Apr 10, 2017 · ce8f058 · ce8f058
1 parent 177dd4c
commit ce8f058
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,9 @@
 language: ruby
 
 rvm:
-  - 2.2
+  - 2.2.6
+  - 2.3.3
+  - 2.4.0
 
 install:
   - "gem install bundler"