diff --git a/Gemfile b/Gemfile
index 483369681accf340f9a85962d8a36be34e9095b2..4919378179003a06af272731e344d5f518ed3143 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,5 @@
 source 'http://rubygems.org'
+ruby '2.3.1'
 
 group :jekyll_plugins do
   gem 'jekyll'
diff --git a/_config.yml b/_config.yml
index 5eec9eb10d2696b95490f3074beece4d2c2b4cbc..c6f59c017ad41cfedc35c74b75d62ad3f1f62fac 100644
--- a/_config.yml
+++ b/_config.yml
@@ -19,7 +19,7 @@ language:  "en"
 # Build settings
 markdown: kramdown
 
-gems: [jekyll-paginate]
+plugins: [jekyll-paginate]
 paginate: 10
 
 # Plugins