diff --git a/Gemfile b/Gemfile
index 1501158cc..ae930f21a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
-ruby '2.3.1'
+ruby '~> 2.3'
 gem 'jekyll'
 gem 'kramdown'
 gem 'rack-jekyll'