diff --git a/config/environment.rb b/config/environment.rb
index 97376af..73540f9 100644
--- a/config/environment.rb
+++ b/config/environment.rb
@@ -120,7 +120,8 @@ Noosfero.default_locale = nil
 Tag.hierarchical = true
 
 # several local libraries
-require 'noosfero'
+
+require_dependency 'noosfero'
 require 'sqlite_extension'
 
 # load a local configuration if present, but not under test environment.
diff --git a/config/routes.rb b/config/routes.rb
index 68ed94e..7f3c819 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1,4 +1,4 @@
-require 'noosfero'
+require_dependency 'noosfero'
 
 ActionController::Routing::Routes.draw do |map|
   # The priority is based upon order of creation: first created -> highest priority.
diff --git a/lib/noosfero/plugin.rb b/lib/noosfero/plugin.rb
index 4927c87..bce6670 100644
--- a/lib/noosfero/plugin.rb
+++ b/lib/noosfero/plugin.rb
@@ -1,4 +1,4 @@
-require 'noosfero'
+require_dependency 'noosfero'
 include ActionView::Helpers::AssetTagHelper
 
 class Noosfero::Plugin
diff --git a/lib/tasks/doc.rake b/lib/tasks/doc.rake
index 54a843f..d1952e1 100644
--- a/lib/tasks/doc.rake
+++ b/lib/tasks/doc.rake
@@ -92,7 +92,7 @@ namespace :noosfero do
 
     po4a_conf = 'tmp/po4a.conf'
     file po4a_conf => english_xhtml do
-      require 'noosfero'
+      require_dependency 'noosfero'
       begin
         File.open(po4a_conf, 'w') do |file|
           file.puts "[po4a_langs] #{(Noosfero.locales.keys - ['en']).join(' ')}"
@@ -136,7 +136,7 @@ namespace :noosfero do
     desc "Translates Noosfero online documentation (does not touch PO files)"
     task :translate => [:link_plugins_textiles, :do_translation]
     task :do_translation => english_xhtml do
-      require 'noosfero'
+      require_dependency 'noosfero'
       languages = Noosfero.locales.keys - ['en']
       languages.each do |lang|
         po = "po/#{lang}/noosfero-doc.po"
diff --git a/lib/tasks/gettext.rake b/lib/tasks/gettext.rake
index f53cd64..f9d736f 100644
--- a/lib/tasks/gettext.rake
+++ b/lib/tasks/gettext.rake
@@ -39,7 +39,7 @@ end
 desc "Update pot/po files to match new version."
 task :updatepo do
   require 'gettext_rails/tools'
-  require 'noosfero'
+  require_dependency 'noosfero'
 
   GetText::RubyParser::ID << '__'
   GetText::RubyParser::PLURAL_ID << 'n__'
diff --git a/lib/tasks/package.rake b/lib/tasks/package.rake
index 106906d..8b85024 100644
--- a/lib/tasks/package.rake
+++ b/lib/tasks/package.rake
@@ -1,7 +1,7 @@
 
 desc "Generate source tarball"
 task :package => 'package:clobber' do
-  require 'noosfero'
+  require_dependency 'noosfero'
   begin
     sh 'test -d .git'
   rescue
diff --git a/lib/tasks/release.rake b/lib/tasks/release.rake
index 4663379..3421b80 100644
--- a/lib/tasks/release.rake
+++ b/lib/tasks/release.rake
@@ -39,7 +39,7 @@ namespace :noosfero do
   end
 
   def version
-    require 'noosfero'
+    require_dependency 'noosfero'
     Noosfero::VERSION
   end
 
diff --git a/lib/tasks/version.rake b/lib/tasks/version.rake
index 43cbaeb..49f84db 100644
--- a/lib/tasks/version.rake
+++ b/lib/tasks/version.rake
@@ -1,5 +1,5 @@
 desc "shows noosfero version"
 task :version do
-  require 'noosfero'
+  require_dependency 'noosfero'
   puts "noosfero, version #{Noosfero::VERSION}"
 end
--
libgit2 0.21.2