diff --git a/Gemfile b/Gemfile
index 7f5fae8..a1b8b56 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,6 +2,8 @@ source "https://rubygems.org"
 gem 'rails'
 gem 'fast_gettext'
 gem 'acts-as-taggable-on'
+gem 'prototype-rails'
+gem 'prototype_legacy_helper', '0.0.0', :git => 'http://git.github.com/rails/prototype_legacy_helper.git'
 
 # TODO needs a rebuild diff-lcs wrt wheezy
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 28fa821..aab532c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,3 +1,9 @@
+GIT
+  remote: http://git.github.com/rails/prototype_legacy_helper.git
+  revision: a2cd95c3e3c1a4f7a9566efdab5ce59c886cb05f
+  specs:
+    prototype_legacy_helper (0.0.0)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -44,6 +50,8 @@ GEM
     mime-types (1.19)
     multi_json (1.3.6)
     polyglot (0.3.3)
+    prototype-rails (3.2.1)
+      rails (~> 3.2)
     rack (1.4.1)
     rack-cache (1.2)
       rack (>= 0.4)
@@ -86,5 +94,7 @@ PLATFORMS
 DEPENDENCIES
   acts-as-taggable-on
   fast_gettext
+  prototype-rails
+  prototype_legacy_helper (= 0.0.0)!
   rails
   rake
--
libgit2 0.21.2