diff --git a/Gemfile b/Gemfile
index 803ea40..5f3a5d6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,5 @@
 source 'https://rubygems.org'
+ruby "1.9.3"
 
 gem 'rails', '~>3.2.3'
 gem 'sorcery'