diff --git a/Gemfile b/Gemfile
index 9ae928c131..3231e1f5fa 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,5 @@
 source 'http://rubygems.org'
+ruby "1.9.3"
 
 gem 'rails', '3.2.3'