Switch travis to test on ruby 2.3

diff --git a/.travis.yml b/.travis.yml
index 6c41bc8b82521802dc6ec577ea93e38b2ceff9f0..36758b0b787f8f5ea12b029f2bf0d1f777dc09e9 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 sudo: false
 language: ruby
 rvm:
-  - 2.1.8
+  - 2.3
 cache: bundler
 addons:
   postgresql: 9.1