diff --git a/puppet/README.CentOS b/puppet/README.CentOS
index 40b64aa..e600d9b 100644
--- a/puppet/README.CentOS
+++ b/puppet/README.CentOS
@@ -2,4 +2,5 @@ Installing the required gems on CentOS 6:
 
 yum install ruby ruby-devel rubygems sqlite sqlite-devel
 gem install --no-rdoc --no-ri rubygems-update && update_rubygems
-gem install --no-rdoc --no-ri mongrel rails sqlite3
+gem install --no-rdoc --no-ri mongrel sqlite3
+gem install --no-rdoc --no-ri rails -v 2.3.14