Switch travis to test on ruby 2.3.1

diff --git a/.travis.yml b/.travis.yml
index 36758b0b787f8f5ea12b029f2bf0d1f777dc09e9..3737f2d1ceac7413a2a129e3e31482517374daaa 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 sudo: false
 language: ruby
 rvm:
 sudo: false
 language: ruby
 rvm:

-  - 2.3
+  - 2.3.1

 cache: bundler
 addons:
   postgresql: 9.1
 cache: bundler
 addons:
   postgresql: 9.1