diff --git a/Gemfile b/Gemfile
index 114faba..317704e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,7 @@
 source 'https://rubygems.org'
 
+ruby "1.9.3"
+
 gem 'rails', '>= 4.0.0'
 gem 'rails-i18n'