diff --git a/INSTALL b/INSTALL
index f893636..b2ea80f 100644
--- a/INSTALL
+++ b/INSTALL
@@ -33,7 +33,7 @@ You need to install some packages Noosfero depends on.  On Debian GNU/Linux or
 Debian-based systems, all of these packages are available through the Debian
 archive. You can install them with the following command:
 
- # apt-get install ruby rake po4a libgettext-ruby-util libgettext-ruby1.8 libsqlite3-ruby rcov librmagick-ruby libredcloth-ruby libwill-paginate-ruby iso-codes libfeedparser-ruby libdaemons-ruby thin tango-icon-theme libhpricot-ruby
+ # apt-get install ruby rake po4a libgettext-ruby-util libgettext-ruby1.8 libsqlite3-ruby rcov librmagick-ruby libredcloth-ruby libwill-paginate-ruby iso-codes libfeedparser-ruby libdaemons-ruby thin tango-icon-theme libhpricot-ruby libnokogiri-ruby
 
 On other systems, they may or may not be available through your regular package
 management system. Below are the links to their homepages.
@@ -52,6 +52,7 @@ management system. Below are the links to their homepages.
 * Thin: http://code.macournoyer.com/thin/
 * tango-icon-theme: http://tango.freedesktop.org/Tango_Icon_Library
 * Hpricot: http://hpricot.com/
+* Nokogiri: http://nokogiri.org/
 
 If you manage to install Noosfero successfully on other systems than Debian,
 please feel free to contact the Noosfero development mailing with the
diff --git a/config/initializers/dependencies.rb b/config/initializers/dependencies.rb
index 65fa81a..cf78eda 100644
--- a/config/initializers/dependencies.rb
+++ b/config/initializers/dependencies.rb
@@ -8,3 +8,4 @@ require 'route_if'
 
 # third-party libraries
 require 'will_paginate'
+require 'nokogiri'
diff --git a/debian/control b/debian/control
index 2a88e6a..c6f0785 100644
--- a/debian/control
+++ b/debian/control
@@ -43,6 +43,7 @@ Depends:
  thin,
  tango-icon-theme,
  libhpricot-ruby,
+ libnokogiri-ruby,
  memcached,
  debconf,
  dbconfig-common,
diff --git a/script/install-dependencies/debian-squeeze.sh b/script/install-dependencies/debian-squeeze.sh
index 921a13b..2cca154 100644
--- a/script/install-dependencies/debian-squeeze.sh
+++ b/script/install-dependencies/debian-squeeze.sh
@@ -4,7 +4,7 @@ run sudo apt-get -y install $runtime_dependencies
 sudo apt-get -y install iceweasel || sudo apt-get -y install firefox
 
 # needed for development
-run sudo apt-get -y install libtidy-ruby libhpricot-ruby libmocha-ruby imagemagick po4a xvfb libxml2-dev libxslt-dev
+run sudo apt-get -y install libtidy-ruby libhpricot-ruby libnokogiri-ruby libmocha-ruby imagemagick po4a xvfb libxml2-dev libxslt-dev
 gem which bundler >/dev/null 2>&1 || gem_install bundler
 setup_rubygems_path
 run bundle install
--
libgit2 0.21.2