diff --git a/Gemfile b/Gemfile
index 49d96fb1..2bb6fb48 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,6 +6,7 @@ gem "coderay", "~> 0.9.7"
 gem "i18n", "~> 0.4.2"
 gem "rubytree", "~> 0.5.2", :require => 'tree'
 gem "rdoc", ">= 2.4.2"
+gem "liquid", "~> 2.3.0"
 # Needed only on RUBY_VERSION = 1.8, ruby 1.9+ compatible interpreters should bring their csv
 gem "fastercsv", "~> 1.5.0", :platforms => [:ruby_18, :jruby, :mingw_18]