diff --git a/Gemfile b/Gemfile
index 788b9b1..0a3625a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,6 @@
 source :rubygems
 
+gem 'rake'
 gem 'mime-types'
 gem 'nanoc'
 gem 'bitly'
@@ -13,3 +14,4 @@ gem 'rb-fsevent'
 gem 'guard'
 gem 'guard-nanoc'
 gem 'growl'
+gem 'systemu'
diff --git a/Gemfile.lock b/Gemfile.lock
index b75b919..c4540d0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,11 +50,13 @@ GEM
       method_source (~> 0.8)
       slop (~> 3.3.1)
     rack (1.4.1)
+    rake (0.9.2.2)
     rb-fsevent (0.9.2)
     rdiscount (1.6.8)
     rubypants (0.2.0)
     sass (3.2.1)
     slop (3.3.3)
+    systemu (2.5.2)
     thor (0.16.0)
 
 PLATFORMS
@@ -70,7 +72,9 @@ DEPENDENCIES
   mime-types
   nanoc
   nokogiri
+  rake
   rb-fsevent
   rdiscount
   rubypants
   sass
+  systemu