diff --git a/config/environments/production.rb b/config/environments/production.rb
index d5c783a..87c79bf 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -44,7 +44,7 @@ Noosfero::Application.configure do
   # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
 
   # Use a different cache store in production
-  config.cache_store = :dalli_store, "127.0.0.1:11211"
+  config.cache_store = :dalli_store, "127.0.0.1:11211", { :namespace => "noosfero/#{Noosfero::VERSION}" }
 
   # Enable serving of images, stylesheets, and javascripts from an asset server
   # config.action_controller.asset_host                  = "http://assets.example.com"
diff --git a/debian/noosfero.prerm b/debian/noosfero.prerm
index a25c14b..b511688 100644
--- a/debian/noosfero.prerm
+++ b/debian/noosfero.prerm
@@ -8,14 +8,7 @@ dbc_go noosfero $@
 
 #DEBHELPER#
 
-# some dirty work is needed after Noosfero is stopped
 if [ "$1" = "upgrade" ]; then
-  # delete cached files
-  rm -f /var/lib/noosfero-data/cache/*
-
-  # restart memcache
-  invoke-rc.d memcached restart
-
   # stop debconf to avoid the problem with infinite hanging, cfe
   # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=295477
   db_stop
diff --git a/debian/rules b/debian/rules
index 4b26c0d..8b650cb 100755
--- a/debian/rules
+++ b/debian/rules
@@ -25,7 +25,7 @@ override_dh_auto_install:
 	debian/filter-gemfile > $(CURDIR)/debian/noosfero/usr/share/noosfero/Gemfile
 
 override_dh_installinit:
-	dh_installinit -pnoosfero --onlyscripts
+	dh_installinit -pnoosfero --onlyscripts --restart-after-upgrade
 
 override_dh_clean:
 	dh_clean
--
libgit2 0.21.2