diff --git a/app/models/user.rb b/app/models/user.rb
index ff9255a..bb4fbef 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,5 +1,4 @@
 require 'digest/sha1'
-require 'user_activation_job'
 require 'securerandom'
 
 # User models the system users, and is generated by the acts_as_authenticated
diff --git a/config/initializers/00_dependencies.rb b/config/initializers/00_dependencies.rb
index c18a827..3163697 100644
--- a/config/initializers/00_dependencies.rb
+++ b/config/initializers/00_dependencies.rb
@@ -25,7 +25,6 @@ require 'acts_as_customizable'
 require 'route_if'
 require 'maybe_add_http'
 require 'set_profile_region_from_city_state'
-require 'authenticated_system'
 require 'needs_profile'
 require 'white_list_filter'
 
diff --git a/config/initializers/active_record_extensions.rb b/config/initializers/active_record_extensions.rb
index bc8eea3..9091f7f 100644
--- a/config/initializers/active_record_extensions.rb
+++ b/config/initializers/active_record_extensions.rb
@@ -2,8 +2,6 @@ require 'upload_sanitizer'
 
 module ActiveRecordExtension
 
-  extend ActiveSupport::Concern
-
   module ClassMethods
     def reflect_on_association(name)
       reflection = super
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 5922f1a..52e91e6 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -8,7 +8,7 @@ require 'rails/test_help'
 
 require 'mocha'
 require 'mocha/mini_test'
-
+require "minitest/spec"
 require "minitest/reporters"
 Minitest::Reporters.use! Minitest::Reporters::ProgressReporter.new, ENV, Minitest.backtrace_filter
 
@@ -52,19 +52,13 @@ class ActiveSupport::TestCase
   # then set this back to true.
   self.use_instantiated_fixtures  = false
 
-  # Add more helper methods to be used by all tests here...
+  extend Test::Should
 
-  # for fixture_file_upload
   include ActionDispatch::TestProcess
-
   include Noosfero::Factory
-
   include AuthenticatedTestHelper
-
   include PerformanceHelper
 
-  extend Test::Should
-
   fixtures :environments, :roles
 
   def self.all_fixtures
--
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