diff --git a/.travis.yml b/.travis.yml
index 7ed73fce0..af5732a70 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ language: ruby
 env: GROWSTUFF_SITE_NAME="Growstuff (travis)" RAILS_SECRET_TOKEN='xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
 bundler_args: --without development production staging
 rvm:
-  - 2.1.2
+  - 2.1.5
 before_script:
   - psql -c 'create database growstuff_test;' -U postgres
 script:
diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index b66986240..83bf19f30 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -50,4 +50,5 @@ submit the change with your pull request.
 - Emma Winston / [emmawinston](https://github.com/emmawinston)
 - Kevin Rio / [krio](https://github.com/krio)
 - Yoong Kang Lim / [yoongkang](https://github.com/yoongkang)
+- Kevin Yang / [kevieyang](https://github.com/kevieyang)
 
diff --git a/Gemfile b/Gemfile
index 451b2d3fc..3fed461ad 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-ruby "2.1.2"
+ruby "2.1.5"
 
 gem 'bundler', '>=1.1.5'