diff --git a/app/controllers/cost_objects_controller.rb b/app/controllers/cost_objects_controller.rb
index defc8073d2..40f2d0a7dd 100644
--- a/app/controllers/cost_objects_controller.rb
+++ b/app/controllers/cost_objects_controller.rb
@@ -18,16 +18,16 @@
 #++
 
 class CostObjectsController < ApplicationController
-  before_filter :find_cost_object, only: [:show, :edit, :update, :copy]
-  before_filter :find_cost_objects, only: :destroy
-  before_filter :find_project, only: [
+  before_action :find_cost_object, only: [:show, :edit, :update, :copy]
+  before_action :find_cost_objects, only: :destroy
+  before_action :find_project, only: [
     :new, :create,
     :update_material_budget_item, :update_labor_budget_item
   ]
-  before_filter :find_optional_project, only: :index
+  before_action :find_optional_project, only: :index
 
-  before_filter :authorize_global, only: :index
-  before_filter :authorize, except: [
+  before_action :authorize_global, only: :index
+  before_action :authorize, except: [
     # unrestricted actions
     :index,
     :update_material_budget_item, :update_labor_budget_item
diff --git a/app/controllers/cost_types_controller.rb b/app/controllers/cost_types_controller.rb
index c0988ad16a..f737c18e74 100644
--- a/app/controllers/cost_types_controller.rb
+++ b/app/controllers/cost_types_controller.rb
@@ -19,8 +19,8 @@
 
 class CostTypesController < ApplicationController
   # Allow only admins here
-  before_filter :require_admin
-  before_filter :find_cost_type, only: [:edit, :update, :set_rate, :destroy, :restore]
+  before_action :require_admin
+  before_action :find_cost_type, only: [:edit, :update, :set_rate, :destroy, :restore]
   layout 'admin'
 
   helper :sort
diff --git a/app/controllers/costlog_controller.rb b/app/controllers/costlog_controller.rb
index a8d9a6fc70..645d36bd34 100644
--- a/app/controllers/costlog_controller.rb
+++ b/app/controllers/costlog_controller.rb
@@ -19,14 +19,14 @@
 
 class CostlogController < ApplicationController
   menu_item :work_packages
-  before_filter :find_project, :authorize, only: [:edit,
+  before_action :find_project, :authorize, only: [:edit,
                                                   :new,
                                                   :create,
                                                   :update,
                                                   :destroy]
-  before_filter :find_associated_objects, only: [:create,
+  before_action :find_associated_objects, only: [:create,
                                                  :update]
-  before_filter :find_optional_project, only: [:report,
+  before_action :find_optional_project, only: [:report,
                                                :index]
 
   helper :sort
diff --git a/app/controllers/hourly_rates_controller.rb b/app/controllers/hourly_rates_controller.rb
index c1efd8d543..795b2a207a 100644
--- a/app/controllers/hourly_rates_controller.rb
+++ b/app/controllers/hourly_rates_controller.rb
@@ -24,13 +24,13 @@ class HourlyRatesController < ApplicationController
   helper :hourly_rates
   include HourlyRatesHelper
 
-  before_filter :find_user, only: [:show, :edit, :update, :set_rate]
+  before_action :find_user, only: [:show, :edit, :update, :set_rate]
 
-  before_filter :find_optional_project, only: [:show, :edit, :update]
-  before_filter :find_project, only: [:set_rate]
+  before_action :find_optional_project, only: [:show, :edit, :update]
+  before_action :find_project, only: [:set_rate]
 
   # #show, #edit have their own authorization
-  before_filter :authorize, except: [:show, :edit, :update]
+  before_action :authorize, except: [:show, :edit, :update]
 
   # TODO: this should be an index
   def show
diff --git a/lib/open_project/costs/patches/projects_controller_patch.rb b/lib/open_project/costs/patches/projects_controller_patch.rb
index 05e6193162..1a807d54c8 100644
--- a/lib/open_project/costs/patches/projects_controller_patch.rb
+++ b/lib/open_project/costs/patches/projects_controller_patch.rb
@@ -22,7 +22,7 @@ module OpenProject::Costs::Patches::ProjectsControllerPatch
     base.send(:include, InstanceMethods)
 
     base.class_eval do
-      before_filter :own_total_hours, only: [:show]
+      before_action :own_total_hours, only: [:show]
     end
   end