diff --git a/Gemfile b/Gemfile
index 6838011..6160f94 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,6 +12,7 @@ group :development do
   gem 'rubypants'
   gem 'rb-fsevent'
   gem 'stringex'
+  gem 'liquid', '2.2.2'
 end
 
 gem 'sinatra', '1.2.6'
diff --git a/Gemfile.lock b/Gemfile.lock
index 0ae80bc..6350698 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -55,6 +55,7 @@ DEPENDENCIES
   compass (>= 0.11)
   haml (>= 3.1)
   jekyll
+  liquid (= 2.2.2)
   pygments.rb
   rack
   rake