diff --git a/Gemfile b/Gemfile
index a254eeb39..a68d6e3f1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -96,10 +96,11 @@ gem 'newrelic_rpm'
 
 gem 'scenic'
 
-# Sidekiq
-gem 'sidekiq'
-gem 'sidekiq-cron', '~> 0.4.4'
-gem 'sinatra', git: 'https://github.com/sinatra/sinatra.git', require: false
+# Cron jobs
+gem 'delayed_job_active_record'
+gem "daemons"
+gem 'delayed_cron_job'
+gem "delayed_job_web"
 
 gem 'select2-rails'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index fda9782df..6ce018ead 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,18 +7,6 @@ GIT
       open4 (~> 1.3.4)
       rake
 
-GIT
-  remote: https://github.com/sinatra/sinatra.git
-  revision: d0c4053fd459be9f2c207cfeec5c0606461c014b
-  specs:
-    rack-protection (2.0.0.rc1)
-      rack
-    sinatra (2.0.0.rc1)
-      mustermann (= 1.0.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.0.rc1)
-      tilt (~> 2.0)
-
 GEM
   remote: https://rubygems.org/
   specs:
@@ -121,15 +109,26 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
-    connection_pool (2.2.1)
     copy_carrierwave_file (1.3.0)
       carrierwave (>= 0.9)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
+    daemons (1.2.4)
     database_cleaner (1.5.3)
     debug_inspector (0.0.2)
     deep_cloneable (2.2.2)
       activerecord (>= 3.1.0, < 5.2.0)
+    delayed_cron_job (0.7.2)
+      delayed_job (>= 4.1)
+    delayed_job (4.1.3)
+      activesupport (>= 3.0, < 5.2)
+    delayed_job_active_record (4.1.2)
+      activerecord (>= 3.0, < 5.2)
+      delayed_job (>= 3.0, < 5)
+    delayed_job_web (1.4)
+      activerecord (> 3.0.0)
+      delayed_job (> 2.0.3)
+      sinatra (>= 1.4.4)
     devise (4.2.0)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -396,7 +395,7 @@ GEM
     minitest (5.10.1)
     multi_json (1.12.1)
     multipart-post (2.0.0)
-    mustermann (1.0.0)
+    mustermann (1.0.1)
     nenv (0.3.0)
     netrc (0.11.0)
     newrelic_rpm (3.18.1.330)
@@ -456,6 +455,8 @@ GEM
       httpclient (>= 2.4)
       multi_json (>= 1.3.6)
       rack (>= 1.1)
+    rack-protection (2.0.0)
+      rack
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (5.0.0.1)
@@ -499,8 +500,6 @@ GEM
       trollop (~> 2.1)
     rdoc (4.3.0)
     redis (3.3.3)
-    redis-namespace (1.5.3)
-      redis (~> 3.0, >= 3.0.4)
     ref (2.0.0)
     request_store (1.3.1)
     responders (2.3.0)
@@ -549,8 +548,6 @@ GEM
     ruby_parser (3.8.3)
       sexp_processor (~> 4.1)
     rubyzip (1.0.0)
-    rufus-scheduler (3.3.4)
-      tzinfo
     safe_yaml (1.0.4)
     sass (3.4.22)
     sass-rails (5.0.6)
@@ -577,18 +574,14 @@ GEM
     shellany (0.0.1)
     shoulda-matchers (3.1.1)
       activesupport (>= 4.0.0)
-    sidekiq (4.2.9)
-      concurrent-ruby (~> 1.0)
-      connection_pool (~> 2.2, >= 2.2.0)
-      rack-protection (>= 1.5.0)
-      redis (~> 3.2, >= 3.2.1)
-    sidekiq-cron (0.4.5)
-      redis-namespace (>= 1.5.2)
-      rufus-scheduler (>= 2.0.24)
-      sidekiq (>= 4.2.1)
     simple_form (3.4.0)
       actionpack (> 4, < 5.1)
       activemodel (> 4, < 5.1)
+    sinatra (2.0.0)
+      mustermann (~> 1.0)
+      rack (~> 2.0)
+      rack-protection (= 2.0.0)
+      tilt (~> 2.0)
     slop (3.6.0)
     smart_listing (1.2.0)
       coffee-rails
@@ -694,8 +687,12 @@ DEPENDENCIES
   chunky_png
   clamav-client
   copy_carrierwave_file
+  daemons
   database_cleaner
   deep_cloneable (~> 2.2.1)
+  delayed_cron_job
+  delayed_job_active_record
+  delayed_job_web
   devise
   dotenv-rails
   draper (~> 3.0.0.pre1)
@@ -743,10 +740,7 @@ DEPENDENCIES
   select2-rails
   sentry-raven
   shoulda-matchers
-  sidekiq
-  sidekiq-cron (~> 0.4.4)
   simple_form
-  sinatra!
   smart_listing
   spreadsheet_architect
   spring
diff --git a/README.md b/README.md
index d395433ee..23c936df1 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,6 @@ Téléprocédures Simplifiées, ou TPS pour les intimes, est une plateforme 100
 ### Tous environnements
 
 - postgresql
-- redis
 
 ### Développement
 
@@ -61,11 +60,14 @@ Afin de générer la BDD de l'application, il est nécessaire d'éxécuter les c
 
 ## Lancement de l'application
 
-    redis-server
-    sidekiq
+    bin/delayed_job run
     mailcatcher -f
     rails s
 
+## Lancement des workers
+
+    Delayed::Job.enqueue(AutoArchiveProcedureWorker.new, cron: "* * * * *")
+    Delayed::Job.enqueue(WeeklyOverviewWorker.new, cron: "0 8 * * 0")
 
 ## Exécution des tests (RSpec)
 
diff --git a/app/workers/auto_archive_procedure_worker.rb b/app/workers/auto_archive_procedure_worker.rb
index d9715b843..d8c6df0a1 100644
--- a/app/workers/auto_archive_procedure_worker.rb
+++ b/app/workers/auto_archive_procedure_worker.rb
@@ -1,7 +1,6 @@
 class AutoArchiveProcedureWorker
-  include Sidekiq::Worker
-
   def perform(*args)
+    Rails.logger.info("AutoArchiveProcedureWorker started at #{Time.now}")
     Procedure.publiees.where("auto_archive_on <= ?", Date.today).each do |procedure|
       procedure.dossiers.state_en_construction.each do |dossier|
         dossier.received!
@@ -9,5 +8,12 @@ class AutoArchiveProcedureWorker
 
       procedure.archive
     end
+    Rails.logger.info("AutoArchiveProcedureWorker ended at #{Time.now}")
   end
+
+  def queue_name
+    "cron"
+  end
+
+  handle_asynchronously :perform
 end
diff --git a/app/workers/weekly_overview_worker.rb b/app/workers/weekly_overview_worker.rb
index 8f15194a7..2d3cf9260 100644
--- a/app/workers/weekly_overview_worker.rb
+++ b/app/workers/weekly_overview_worker.rb
@@ -1,7 +1,6 @@
 class WeeklyOverviewWorker
-  include Sidekiq::Worker
-
   def perform(*args)
+    Rails.logger.info("WeeklyOverviewWorker started at #{Time.now}")
     # Feature flipped to avoid mails in staging due to unprocessed dossier
     if Features.weekly_overview
       Gestionnaire.all
@@ -9,5 +8,12 @@ class WeeklyOverviewWorker
         .reject { |_, overview| overview.nil? }
         .each { |gestionnaire, overview| GestionnaireMailer.last_week_overview(gestionnaire, overview).deliver_now }
     end
+    Rails.logger.info("WeeklyOverviewWorker ended at #{Time.now}")
   end
+
+  def queue_name
+    "cron"
+  end
+
+  handle_asynchronously :perform
 end
diff --git a/bin/delayed_job b/bin/delayed_job
new file mode 100755
index 000000000..edf195985
--- /dev/null
+++ b/bin/delayed_job
@@ -0,0 +1,5 @@
+#!/usr/bin/env ruby
+
+require File.expand_path(File.join(File.dirname(__FILE__), '..', 'config', 'environment'))
+require 'delayed/command'
+Delayed::Command.new(ARGV).daemonize
diff --git a/config/deploy.rb b/config/deploy.rb
index c6c264d9c..0a48ab1a3 100644
--- a/config/deploy.rb
+++ b/config/deploy.rb
@@ -58,7 +58,6 @@ set :shared_paths, [
                      "config/fog_credentials.yml",
                      'config/initializers/secret_token.rb',
                      'config/initializers/features.yml',
-                     'config/initializers/sidekiq.rb',
                      "config/environments/#{rails_env}.rb",
                      "config/initializers/token.rb",
                      "config/initializers/urls.rb",
@@ -131,7 +130,7 @@ desc "Deploys the current version to the server."
 task :deploy => :environment do
   queue 'export PATH=$PATH:/usr/local/rbenv/bin:/usr/local/rbenv/shims'
   deploy do
-    queue %[sudo stop sidekiq_#{user!} || true]
+    queue %[sudo stop delayed_job_#{user!} || true]
     # Put things that will set up an empty directory into a fully set-up
     # instance of your project.
     invoke :'git:clone'
@@ -142,7 +141,7 @@ task :deploy => :environment do
 
     to :launch do
       queue "/etc/init.d/#{user} upgrade "
-      queue! %[sudo start sidekiq_#{user!}]
+      queue! %[sudo start delayed_job_#{user!}]
 
       queue "cd #{deploy_to}/#{current_path}/"
       queue "bundle exec rake db:seed RAILS_ENV=#{rails_env}"
diff --git a/config/initializers/sidekiq.rb b/config/initializers/sidekiq.rb
deleted file mode 100644
index a61ed5e57..000000000
--- a/config/initializers/sidekiq.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-Sidekiq.configure_server do |config|
-  Sidekiq::Logging.logger = Rails.logger
-
-  schedule_file = "config/schedule.yml"
-  Sidekiq::Cron::Job.load_from_hash YAML.load_file(schedule_file)
-end
diff --git a/config/routes.rb b/config/routes.rb
index c0272c9ef..dbaa51e86 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -47,9 +47,7 @@ Rails.application.routes.draw do
   authenticate :administration do
     resources :administrations, only: [:index, :create]
     namespace :administrations do
-      require 'sidekiq/web'
-      require 'sidekiq/cron/web'
-      mount Sidekiq::Web => '/sidekiq'
+      match "/delayed_job" => DelayedJobWeb, :anchor => false, :via => [:get, :post]
     end
   end
 
diff --git a/config/sidekiq.yml b/config/sidekiq.yml
deleted file mode 100644
index 0fe0c4360..000000000
--- a/config/sidekiq.yml
+++ /dev/null
@@ -1,7 +0,0 @@
-:concurrency: 5
-staging:
-  :concurrency: 2
-production:
-  :concurrency: 2
-:queues:
-  - default
diff --git a/db/migrate/20170926083816_create_delayed_jobs.rb b/db/migrate/20170926083816_create_delayed_jobs.rb
new file mode 100644
index 000000000..130a8d570
--- /dev/null
+++ b/db/migrate/20170926083816_create_delayed_jobs.rb
@@ -0,0 +1,22 @@
+class CreateDelayedJobs < ActiveRecord::Migration[5.0]
+  def self.up
+    create_table :delayed_jobs, force: true do |table|
+      table.integer :priority, default: 0, null: false # Allows some jobs to jump to the front of the queue
+      table.integer :attempts, default: 0, null: false # Provides for retries, but still fail eventually.
+      table.text :handler,                 null: false # YAML-encoded string of the object that will do work
+      table.text :last_error                           # reason for last failure (See Note below)
+      table.datetime :run_at                           # When to run. Could be Time.zone.now for immediately, or sometime in the future.
+      table.datetime :locked_at                        # Set when a client is working on this object
+      table.datetime :failed_at                        # Set when all retries have failed (actually, by default, the record is deleted instead)
+      table.string :locked_by                          # Who is working on this object (if locked)
+      table.string :queue                              # The name of the queue this job is in
+      table.timestamps null: true
+    end
+
+    add_index :delayed_jobs, [:priority, :run_at], name: "delayed_jobs_priority"
+  end
+
+  def self.down
+    drop_table :delayed_jobs
+  end
+end
diff --git a/db/migrate/20170926092716_add_cron_to_delayed_jobs.rb b/db/migrate/20170926092716_add_cron_to_delayed_jobs.rb
new file mode 100644
index 000000000..33e89d190
--- /dev/null
+++ b/db/migrate/20170926092716_add_cron_to_delayed_jobs.rb
@@ -0,0 +1,9 @@
+class AddCronToDelayedJobs < ActiveRecord::Migration[5.0]
+  def self.up
+    add_column :delayed_jobs, :cron, :string
+  end
+
+  def self.down
+    remove_column :delayed_jobs, :cron
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index ec4a5d01a..e2bd74e20 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170908101023) do
+ActiveRecord::Schema.define(version: 20170926092716) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -162,6 +162,22 @@ ActiveRecord::Schema.define(version: 20170908101023) do
     t.index ["dossier_id"], name: "index_commentaires_on_dossier_id", using: :btree
   end
 
+  create_table "delayed_jobs", force: :cascade do |t|
+    t.integer  "priority",   default: 0, null: false
+    t.integer  "attempts",   default: 0, null: false
+    t.text     "handler",                null: false
+    t.text     "last_error"
+    t.datetime "run_at"
+    t.datetime "locked_at"
+    t.datetime "failed_at"
+    t.string   "locked_by"
+    t.string   "queue"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.string   "cron"
+    t.index ["priority", "run_at"], name: "delayed_jobs_priority", using: :btree
+  end
+
   create_table "dossiers", force: :cascade do |t|
     t.boolean  "autorisation_donnees"
     t.integer  "procedure_id"
diff --git a/spec/workers/auto_archive_procedure_worker_spec.rb b/spec/workers/auto_archive_procedure_worker_spec.rb
index ae47d6f42..af3fe73fe 100644
--- a/spec/workers/auto_archive_procedure_worker_spec.rb
+++ b/spec/workers/auto_archive_procedure_worker_spec.rb
@@ -1,6 +1,9 @@
 require 'rails_helper'
 
 RSpec.describe AutoArchiveProcedureWorker, type: :worker do
+  before { Delayed::Worker.delay_jobs = false }
+  after { Delayed::Worker.delay_jobs = true }
+
   let!(:procedure) { create(:procedure, published_at: Time.now, archived_at: nil, auto_archive_on: nil )}
   let!(:procedure_hier) { create(:procedure, published_at: Time.now, archived_at: nil, auto_archive_on: 1.day.ago )}
   let!(:procedure_aujourdhui) { create(:procedure, published_at: Time.now, archived_at: nil, auto_archive_on: Date.today )}
diff --git a/spec/workers/weekly_overview_worker_spec.rb b/spec/workers/weekly_overview_worker_spec.rb
index e2bff3e80..9568e1509 100644
--- a/spec/workers/weekly_overview_worker_spec.rb
+++ b/spec/workers/weekly_overview_worker_spec.rb
@@ -1,6 +1,9 @@
 require 'rails_helper'
 
 RSpec.describe WeeklyOverviewWorker, type: :worker do
+  before { Delayed::Worker.delay_jobs = false }
+  after { Delayed::Worker.delay_jobs = true }
+
   describe 'perform' do
     let!(:gestionnaire) { create(:gestionnaire) }
     let(:overview) { double('overview') }