diff --git a/.rubocop.yml b/.rubocop.yml
index 82dd6e4b1..398f75b46 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -420,3 +420,6 @@ Style/StringLiterals:
 
 Style/StringLiteralsInInterpolation:
   EnforcedStyle: double_quotes
+
+Style/SymbolProc:
+  Enabled: true
diff --git a/app/controllers/admin/poll/shifts_controller.rb b/app/controllers/admin/poll/shifts_controller.rb
index c85d9064a..8805f4304 100644
--- a/app/controllers/admin/poll/shifts_controller.rb
+++ b/app/controllers/admin/poll/shifts_controller.rb
@@ -36,7 +36,7 @@ class Admin::Poll::ShiftsController < Admin::Poll::BaseController
   end
 
   def search_officers
-    @officers = User.search(params[:search]).order(username: :asc).select { |o| o.poll_officer? }
+    @officers = User.search(params[:search]).order(username: :asc).select(&:poll_officer?)
   end
 
   private
diff --git a/app/controllers/admin/settings_controller.rb b/app/controllers/admin/settings_controller.rb
index e4e475053..d5d8810ce 100644
--- a/app/controllers/admin/settings_controller.rb
+++ b/app/controllers/admin/settings_controller.rb
@@ -8,7 +8,7 @@ class Admin::SettingsController < Admin::BaseController
                 :poster_feature_short_title_setting, :poster_feature_description_setting
 
   def index
-    all_settings = Setting.all.group_by { |setting| setting.type }
+    all_settings = Setting.all.group_by(&:type)
     @configuration_settings = all_settings["configuration"]
     @feature_settings = all_settings["feature"]
     @participation_processes_settings = all_settings["process"]
diff --git a/app/controllers/admin/site_customization/content_blocks_controller.rb b/app/controllers/admin/site_customization/content_blocks_controller.rb
index 54b695342..ed04b85a0 100644
--- a/app/controllers/admin/site_customization/content_blocks_controller.rb
+++ b/app/controllers/admin/site_customization/content_blocks_controller.rb
@@ -9,7 +9,7 @@ class Admin::SiteCustomization::ContentBlocksController < Admin::SiteCustomizati
   def index
     @content_blocks = SiteCustomization::ContentBlock.order(:name, :locale)
     @headings_content_blocks = Budget::ContentBlock.all
-    all_settings = Setting.all.group_by { |setting| setting.type }
+    all_settings = Setting.all.group_by(&:type)
     @html_settings = all_settings["html"]
   end
 
diff --git a/app/controllers/admin/system_emails_controller.rb b/app/controllers/admin/system_emails_controller.rb
index 0baf0970a..d3b60c686 100644
--- a/app/controllers/admin/system_emails_controller.rb
+++ b/app/controllers/admin/system_emails_controller.rb
@@ -91,7 +91,7 @@ class Admin::SystemEmailsController < Admin::BaseController
     end
 
     def load_sample_reply
-      reply = Comment.select { |comment| comment.reply? }.last
+      reply = Comment.select(&:reply?).last
       if reply
         @email = ReplyEmail.new(reply)
       else
diff --git a/app/controllers/budgets/ballot/lines_controller.rb b/app/controllers/budgets/ballot/lines_controller.rb
index 58e9c43f4..124bfba83 100644
--- a/app/controllers/budgets/ballot/lines_controller.rb
+++ b/app/controllers/budgets/ballot/lines_controller.rb
@@ -73,9 +73,7 @@ module Budgets
 
         def load_map
           @investments ||= []
-          @investments_map_coordinates = MapLocation.where(investment: @investments).map do |loc|
-            loc.json_data
-          end
+          @investments_map_coordinates = MapLocation.where(investment: @investments).map(&:json_data)
           @map_location = MapLocation.load_from_heading(@heading)
         end
     end
diff --git a/app/controllers/notifications_controller.rb b/app/controllers/notifications_controller.rb
index 7510d94bb..f01856408 100644
--- a/app/controllers/notifications_controller.rb
+++ b/app/controllers/notifications_controller.rb
@@ -19,7 +19,7 @@ class NotificationsController < ApplicationController
   end
 
   def mark_all_as_read
-    current_user.notifications.unread.each { |notification| notification.mark_as_read }
+    current_user.notifications.unread.each(&:mark_as_read)
     redirect_to notifications_path
   end
 
diff --git a/app/controllers/officing/results_controller.rb b/app/controllers/officing/results_controller.rb
index 6cc93a712..b25baae63 100644
--- a/app/controllers/officing/results_controller.rb
+++ b/app/controllers/officing/results_controller.rb
@@ -13,7 +13,7 @@ class Officing::ResultsController < Officing::BaseController
   end
 
   def create
-    @results.each { |result| result.save! }
+    @results.each(&:save!)
 
     notice = t("officing.results.flash.create")
     redirect_to new_officing_poll_result_path(@poll), notice: notice
diff --git a/app/controllers/organizations/registrations_controller.rb b/app/controllers/organizations/registrations_controller.rb
index 2a770e2da..d4acb3c7b 100644
--- a/app/controllers/organizations/registrations_controller.rb
+++ b/app/controllers/organizations/registrations_controller.rb
@@ -2,9 +2,7 @@ class Organizations::RegistrationsController < Devise::RegistrationsController
   invisible_captcha only: [:create], honeypot: :address, scope: :user
 
   def new
-    super do |user|
-      user.build_organization
-    end
+    super(&:build_organization)
   end
 
   def success
diff --git a/app/controllers/polls/answers_controller.rb b/app/controllers/polls/answers_controller.rb
index eb0702d2b..08fbed082 100644
--- a/app/controllers/polls/answers_controller.rb
+++ b/app/controllers/polls/answers_controller.rb
@@ -26,9 +26,7 @@ class Polls::AnswersController < ApplicationController
   def delete
     @question = Poll::Question.find_by(id: params[:id])
     !@question.answers.find_by(author: current_user, answer: params[:answer]).destroy
-    @question.question_answers.each do |question_answer|
-      question_answer.set_most_voted
-    end
+    @question.question_answers.each(&:set_most_voted)
     question_answers
     load_for_answers
     if @question.enum_type&.include?("answer_couples")
diff --git a/app/controllers/polls/questions_controller.rb b/app/controllers/polls/questions_controller.rb
index 49299fd7e..bdb791406 100644
--- a/app/controllers/polls/questions_controller.rb
+++ b/app/controllers/polls/questions_controller.rb
@@ -49,9 +49,7 @@ class Polls::QuestionsController < ApplicationController
       answer.touch if answer.persisted?
       answer.save!
       answer.record_voter_participation(token)
-      @question.question_answers.visibles.where(question_id: @question).each do |question_answer|
-        question_answer.set_most_voted
-      end
+      @question.question_answers.visibles.where(question_id: @question).each(&:set_most_voted)
     end
 
     def store_answer
diff --git a/app/helpers/budgets_helper.rb b/app/helpers/budgets_helper.rb
index dd5c9f4a3..7915b10a3 100644
--- a/app/helpers/budgets_helper.rb
+++ b/app/helpers/budgets_helper.rb
@@ -82,7 +82,7 @@ module BudgetsHelper
       investments = current_budget.investments
     end
 
-    MapLocation.where(investment_id: investments).map { |l| l.json_data }
+    MapLocation.where(investment_id: investments).map(&:json_data)
   end
 
   def display_calculate_winners_button?(budget)
diff --git a/app/helpers/translatable_form_helper.rb b/app/helpers/translatable_form_helper.rb
index 21fe5f703..efe0e2b48 100644
--- a/app/helpers/translatable_form_helper.rb
+++ b/app/helpers/translatable_form_helper.rb
@@ -64,9 +64,7 @@ module TranslatableFormHelper
       end
 
       def new_translation_for(locale)
-        @object.translations.new(locale: locale).tap do |translation|
-          translation.mark_for_destruction
-        end
+        @object.translations.new(locale: locale).tap(&:mark_for_destruction)
       end
 
       def highlight_translation_html_class
diff --git a/app/models/abilities/administrator.rb b/app/models/abilities/administrator.rb
index 9f3d99973..973d0fe23 100644
--- a/app/models/abilities/administrator.rb
+++ b/app/models/abilities/administrator.rb
@@ -67,7 +67,7 @@ module Abilities
       can :create, Budget::ValuatorAssignment
       can [:edit_dossier], Budget::Investment
 
-      can(:read_admin_stats, Budget) { |budget| budget.balloting_or_later? }
+      can :read_admin_stats, Budget, &:balloting_or_later?
 
       can [:search, :edit, :update, :create, :index, :destroy], Banner
 
diff --git a/app/models/abilities/common.rb b/app/models/abilities/common.rb
index 04155f8fc..b514a20eb 100644
--- a/app/models/abilities/common.rb
+++ b/app/models/abilities/common.rb
@@ -85,9 +85,7 @@ module Abilities
       end
 
       if user.level_two_or_three_verified?
-        can :vote, Proposal do |proposal|
-          proposal.published?
-        end
+        can :vote, Proposal, &:published?
         can :vote_featured, Proposal
 
         can :vote, Legislation::Proposal
diff --git a/app/models/abilities/everyone.rb b/app/models/abilities/everyone.rb
index 20f53f5f1..506032203 100644
--- a/app/models/abilities/everyone.rb
+++ b/app/models/abilities/everyone.rb
@@ -25,9 +25,7 @@ module Abilities
       can :new, DirectMessage
       can [:read, :debate, :draft_publication, :allegations, :result_publication,
            :proposals, :milestones], Legislation::Process, published: true
-      can :resume, Legislation::Process do |process|
-        process.past?
-      end
+      can :resume, Legislation::Process, &:past?
       can [:read, :changes, :go_to_version], Legislation::DraftVersion
       can [:read], Legislation::Question
       can [:read, :map, :share], Legislation::Proposal
diff --git a/app/models/concerns/relationable.rb b/app/models/concerns/relationable.rb
index 538ee8738..86c58b4dd 100644
--- a/app/models/concerns/relationable.rb
+++ b/app/models/concerns/relationable.rb
@@ -13,6 +13,6 @@ module Relationable
   end
 
   def relationed_contents
-    related_contents.not_hidden.map { |related_content| related_content.child_relationable }
+    related_contents.not_hidden.map(&:child_relationable)
   end
 end
diff --git a/app/models/poll/question.rb b/app/models/poll/question.rb
index c7d927bd8..6563887d9 100644
--- a/app/models/poll/question.rb
+++ b/app/models/poll/question.rb
@@ -75,7 +75,7 @@ class Poll::Question < ApplicationRecord
   end
 
   def most_voted_answer_id
-    question_answers.max_by { |answer| answer.total_votes }.id
+    question_answers.max_by(&:total_votes).id
   end
 
   def answers_with_read_more?
diff --git a/lib/manager_authenticator.rb b/lib/manager_authenticator.rb
index 9d27fcdb0..5ad17cb07 100644
--- a/lib/manager_authenticator.rb
+++ b/lib/manager_authenticator.rb
@@ -4,7 +4,7 @@ class ManagerAuthenticator
   end
 
   def auth
-    return false unless [@manager[:login], @manager[:user_key], @manager[:date]].all? { |manager| manager.present? }
+    return false unless [@manager[:login], @manager[:user_key], @manager[:date]].all?(&:present?)
     return @manager if manager_exists? && application_authorized?
 
     false
diff --git a/lib/remote_census_api.rb b/lib/remote_census_api.rb
index 7cda5af29..25f3c083a 100644
--- a/lib/remote_census_api.rb
+++ b/lib/remote_census_api.rb
@@ -66,7 +66,7 @@ class RemoteCensusApi
     end
 
     def parse_response_path(path_value)
-      path_value.split(".").map { |section| section.to_sym } if path_value.present?
+      path_value.split(".").map(&:to_sym) if path_value.present?
     end
   end
 
diff --git a/lib/remote_translations/microsoft/available_locales.rb b/lib/remote_translations/microsoft/available_locales.rb
index 17077de80..8adee78f7 100644
--- a/lib/remote_translations/microsoft/available_locales.rb
+++ b/lib/remote_translations/microsoft/available_locales.rb
@@ -6,7 +6,7 @@ require "json"
 class RemoteTranslations::Microsoft::AvailableLocales
   def self.available_locales
     daily_cache("locales") do
-      remote_available_locales.map { |locale| locale.first }
+      remote_available_locales.map(&:first)
     end
   end
 
diff --git a/spec/factories/administration.rb b/spec/factories/administration.rb
index 591453de3..a596d45dd 100644
--- a/spec/factories/administration.rb
+++ b/spec/factories/administration.rb
@@ -6,8 +6,8 @@ FactoryBot.define do
 
   factory :geozone do
     sequence(:name) { |n| "District #{n}" }
-    sequence(:external_code) { |n| n.to_s }
-    sequence(:census_code) { |n| n.to_s }
+    sequence(:external_code, &:to_s)
+    sequence(:census_code, &:to_s)
 
     trait :in_census do
       census_code { "01" }
diff --git a/spec/factories/analytics.rb b/spec/factories/analytics.rb
index c5cbeb11e..17b1db3b4 100644
--- a/spec/factories/analytics.rb
+++ b/spec/factories/analytics.rb
@@ -12,6 +12,6 @@ FactoryBot.define do
 
   factory :campaign do
     sequence(:name) { |n| "Campaign #{n}" }
-    sequence(:track_id) { |n| n.to_s }
+    sequence(:track_id, &:to_s)
   end
 end
diff --git a/spec/factories/budgets.rb b/spec/factories/budgets.rb
index 751bdc4dc..877742f5e 100644
--- a/spec/factories/budgets.rb
+++ b/spec/factories/budgets.rb
@@ -101,7 +101,7 @@ FactoryBot.define do
     incompatible         { false }
 
     trait :with_confidence_score do
-      before(:save) { |i| i.calculate_confidence_score }
+      before(:save, &:calculate_confidence_score)
     end
 
     trait :feasible do
diff --git a/spec/factories/comments.rb b/spec/factories/comments.rb
index 1127836d5..3e35e0e2d 100644
--- a/spec/factories/comments.rb
+++ b/spec/factories/comments.rb
@@ -23,7 +23,7 @@ FactoryBot.define do
     end
 
     trait :with_confidence_score do
-      before(:save) { |d| d.calculate_confidence_score }
+      before(:save, &:calculate_confidence_score)
     end
 
     trait :valuation do
diff --git a/spec/factories/debates.rb b/spec/factories/debates.rb
index 3293df786..972819059 100644
--- a/spec/factories/debates.rb
+++ b/spec/factories/debates.rb
@@ -24,11 +24,11 @@ FactoryBot.define do
     end
 
     trait :with_hot_score do
-      before(:save) { |d| d.calculate_hot_score }
+      before(:save, &:calculate_hot_score)
     end
 
     trait :with_confidence_score do
-      before(:save) { |d| d.calculate_confidence_score }
+      before(:save, &:calculate_confidence_score)
     end
 
     trait :conflictive do
diff --git a/spec/factories/proposals.rb b/spec/factories/proposals.rb
index aed8b8339..ac357aa6f 100644
--- a/spec/factories/proposals.rb
+++ b/spec/factories/proposals.rb
@@ -38,11 +38,11 @@ FactoryBot.define do
     end
 
     trait :with_hot_score do
-      before(:save) { |d| d.calculate_hot_score }
+      before(:save, &:calculate_hot_score)
     end
 
     trait :with_confidence_score do
-      before(:save) { |d| d.calculate_confidence_score }
+      before(:save, &:calculate_confidence_score)
     end
 
     trait :conflictive do
diff --git a/spec/features/budgets/investments_spec.rb b/spec/features/budgets/investments_spec.rb
index 801d4f76f..3e432ad5d 100644
--- a/spec/features/budgets/investments_spec.rb
+++ b/spec/features/budgets/investments_spec.rb
@@ -632,11 +632,11 @@ describe "Budget Investments" do
       visit budget_investments_path(budget, heading_id: heading.id)
 
       within(".submenu .is-active") { expect(page).to have_content "random" }
-      order = all(".budget-investment h3").map { |i| i.text }
+      order = all(".budget-investment h3").map(&:text)
       expect(order).not_to be_empty
 
       visit budget_investments_path(budget, heading_id: heading.id)
-      new_order = all(".budget-investment h3").map { |i| i.text }
+      new_order = all(".budget-investment h3").map(&:text)
 
       expect(order).to eq(new_order)
     end
@@ -645,14 +645,14 @@ describe "Budget Investments" do
       (per_page + 2).times { create(:budget_investment, heading: heading) }
 
       visit budget_investments_path(budget, heading_id: heading.id)
-      order = all(".budget-investment h3").map { |i| i.text }
+      order = all(".budget-investment h3").map(&:text)
       expect(order).not_to be_empty
 
       click_link "highest rated"
       click_link "random"
 
       visit budget_investments_path(budget, heading_id: heading.id)
-      new_order = all(".budget-investment h3").map { |i| i.text }
+      new_order = all(".budget-investment h3").map(&:text)
 
       expect(order).to eq(new_order)
     end
@@ -662,7 +662,7 @@ describe "Budget Investments" do
 
       visit budget_investments_path(budget, heading_id: heading.id)
 
-      order = all(".budget-investment h3").map { |i| i.text }
+      order = all(".budget-investment h3").map(&:text)
       expect(order).not_to be_empty
 
       click_link "Next"
@@ -671,7 +671,7 @@ describe "Budget Investments" do
       click_link "Previous"
       expect(page).to have_content "You're on page 1"
 
-      new_order = all(".budget-investment h3").map { |i| i.text }
+      new_order = all(".budget-investment h3").map(&:text)
       expect(order).to eq(new_order)
     end
 
@@ -680,13 +680,13 @@ describe "Budget Investments" do
 
       visit budget_investments_path(budget, heading_id: heading.id)
 
-      order = all(".budget-investment h3").map { |i| i.text }
+      order = all(".budget-investment h3").map(&:text)
       expect(order).not_to be_empty
 
       click_link Budget::Investment.first.title
       click_link "Go back"
 
-      new_order = all(".budget-investment h3").map { |i| i.text }
+      new_order = all(".budget-investment h3").map(&:text)
       expect(order).to eq(new_order)
     end
 
@@ -812,11 +812,11 @@ describe "Budget Investments" do
       budget.update!(phase: "finished")
 
       visit budget_investments_path(budget, heading_id: heading.id)
-      order = all(".budget-investment h3").map { |i| i.text }
+      order = all(".budget-investment h3").map(&:text)
       expect(order).not_to be_empty
 
       visit budget_investments_path(budget, heading_id: heading.id)
-      new_order = all(".budget-investment h3").map { |i| i.text }
+      new_order = all(".budget-investment h3").map(&:text)
 
       expect(order).to eq(new_order)
     end
@@ -844,7 +844,7 @@ describe "Budget Investments" do
     end
 
     def investments_order
-      all(".budget-investment h3").map { |i| i.text }
+      all(".budget-investment h3").map(&:text)
     end
   end
 
diff --git a/spec/features/notifications_spec.rb b/spec/features/notifications_spec.rb
index 8391ff048..43e5a045c 100644
--- a/spec/features/notifications_spec.rb
+++ b/spec/features/notifications_spec.rb
@@ -229,7 +229,7 @@ describe "Notifications" do
   end
 
   def remove_users_without_pending_notifications
-    users_without_notifications.each { |user| user.destroy }
+    users_without_notifications.each(&:destroy)
   end
 
   def users_without_notifications
diff --git a/spec/features/users_spec.rb b/spec/features/users_spec.rb
index 2a47e1fe0..778ecdb7b 100644
--- a/spec/features/users_spec.rb
+++ b/spec/features/users_spec.rb
@@ -418,7 +418,7 @@ describe "Users" do
 
     scenario "Gracefully handle followables that have been hidden" do
       create(:proposal, followers: [user])
-      create(:proposal, followers: [user]) { |proposal| proposal.hide }
+      create(:proposal, followers: [user], &:hide)
 
       visit user_path(user)
 
diff --git a/spec/lib/graphql_spec.rb b/spec/lib/graphql_spec.rb
index ba232e74f..1a2efcce8 100644
--- a/spec/lib/graphql_spec.rb
+++ b/spec/lib/graphql_spec.rb
@@ -396,7 +396,7 @@ describe "Consul Schema" do
 
   describe "Geozones" do
     it "returns geozones" do
-      geozone_names = [create(:geozone), create(:geozone)].map { |geozone| geozone.name }
+      geozone_names = [create(:geozone), create(:geozone)].map(&:name)
 
       response = execute("{ geozones { edges { node { name } } } }")
       received_names = extract_fields(response, "geozones", "name")