diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 9cb397aa..865fcd12 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -11,6 +11,7 @@ class ApplicationController < ActionController::Base
   include UserTrackingConcern
 
   helper_method :current_account
+  helper_method :current_session
   helper_method :single_user_mode?
 
   rescue_from ActionController::RoutingError, with: :not_found
@@ -68,6 +69,10 @@ class ApplicationController < ActionController::Base
     @current_account ||= current_user.try(:account)
   end
 
+  def current_session
+    @current_session ||= SessionActivation.find_by(session_id: session['auth_id'])
+  end
+
   def cache_collection(raw, klass)
     return raw unless klass.respond_to?(:with_includes)
 
diff --git a/app/controllers/home_controller.rb b/app/controllers/home_controller.rb
index 1d41892c..6209a3ae 100644
--- a/app/controllers/home_controller.rb
+++ b/app/controllers/home_controller.rb
@@ -5,7 +5,7 @@ class HomeController < ApplicationController
 
   def index
     @body_classes           = 'app-body'
-    @token                  = find_or_create_access_token.token
+    @token                  = current_session.token
     @web_settings           = Web::Setting.find_by(user: current_user)&.data || {}
     @admin                  = Account.find_local(Setting.site_contact_username)
     @streaming_api_base_url = Rails.configuration.x.streaming_api_base_url
@@ -16,14 +16,4 @@ class HomeController < ApplicationController
   def authenticate_user!
     redirect_to(single_user_mode? ? account_path(Account.first) : about_path) unless user_signed_in?
   end
-
-  def find_or_create_access_token
-    Doorkeeper::AccessToken.find_or_create_for(
-      Doorkeeper::Application.where(superapp: true).first,
-      current_user.id,
-      Doorkeeper::OAuth::Scopes.from_string('read write follow'),
-      Doorkeeper.configuration.access_token_expires_in,
-      Doorkeeper.configuration.refresh_token_enabled?
-    )
-  end
 end
diff --git a/app/models/session_activation.rb b/app/models/session_activation.rb
index 75339b5f..02a918e8 100644
--- a/app/models/session_activation.rb
+++ b/app/models/session_activation.rb
@@ -3,16 +3,23 @@
 #
 # Table name: session_activations
 #
-#  id         :integer          not null, primary key
-#  user_id    :integer          not null
-#  session_id :string           not null
-#  created_at :datetime         not null
-#  updated_at :datetime         not null
-#  user_agent :string           default(""), not null
-#  ip         :inet
+#  id              :integer          not null, primary key
+#  user_id         :integer          not null
+#  session_id      :string           not null
+#  created_at      :datetime         not null
+#  updated_at      :datetime         not null
+#  user_agent      :string           default(""), not null
+#  ip              :inet
+#  access_token_id :integer
 #
 
 class SessionActivation < ApplicationRecord
+  belongs_to :access_token, class_name: 'Doorkeeper::AccessToken', dependent: :destroy
+
+  delegate :token,
+           to: :access_token,
+           allow_nil: true
+
   def detection
     @detection ||= Browser.new(user_agent)
   end
@@ -25,9 +32,8 @@ class SessionActivation < ApplicationRecord
     detection.platform.id
   end
 
-  before_save do
-    self.user_agent = '' if user_agent.nil?
-  end
+  before_create :assign_access_token
+  before_save   :assign_user_agent
 
   class << self
     def active?(id)
@@ -53,4 +59,22 @@ class SessionActivation < ApplicationRecord
       where('session_id != ?', id).destroy_all
     end
   end
+
+  private
+
+  def assign_user_agent
+    self.user_agent = '' if user_agent.nil?
+  end
+
+  def assign_access_token
+    superapp = Doorkeeper::Application.find_by(superapp: true)
+
+    return if superapp.nil?
+
+    self.access_token = Doorkeeper::AccessToken.create!(application_id: superapp.id,
+                                                        resource_owner_id: user_id,
+                                                        scopes: 'read write follow',
+                                                        expires_in: Doorkeeper.configuration.access_token_expires_in,
+                                                        use_refresh_token: Doorkeeper.configuration.refresh_token_enabled?)
+  end
 end
diff --git a/app/workers/scheduler/doorkeeper_cleanup_scheduler.rb b/app/workers/scheduler/doorkeeper_cleanup_scheduler.rb
new file mode 100644
index 00000000..6488798c
--- /dev/null
+++ b/app/workers/scheduler/doorkeeper_cleanup_scheduler.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+require 'sidekiq-scheduler'
+
+class Scheduler::DoorkeeperCleanupScheduler
+  include Sidekiq::Worker
+
+  def perform
+    Doorkeeper::AccessToken.where('revoked_at IS NOT NULL').where('revoked_at < NOW()').delete_all
+    Doorkeeper::AccessGrant.where('revoked_at IS NOT NULL').where('revoked_at < NOW()').delete_all
+  end
+end
diff --git a/config/sidekiq.yml b/config/sidekiq.yml
index 6ed0aa4b..78aaa311 100644
--- a/config/sidekiq.yml
+++ b/config/sidekiq.yml
@@ -15,3 +15,6 @@
   feed_cleanup_scheduler:
     cron: '0 0 * * *'
     class: Scheduler::FeedCleanupScheduler
+  doorkeeper_cleanup_scheduler:
+    cron: '1 1 * * 0'
+    class: Scheduler::DoorkeeperCleanupScheduler
diff --git a/db/migrate/20170625140443_add_access_token_id_to_session_activations.rb b/db/migrate/20170625140443_add_access_token_id_to_session_activations.rb
new file mode 100644
index 00000000..213a77a8
--- /dev/null
+++ b/db/migrate/20170625140443_add_access_token_id_to_session_activations.rb
@@ -0,0 +1,6 @@
+class AddAccessTokenIdToSessionActivations < ActiveRecord::Migration[5.1]
+  def change
+    add_column :session_activations, :access_token_id, :integer
+    add_foreign_key :session_activations, :oauth_access_tokens, column: :access_token_id, on_delete: :cascade
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 1e7d6c0b..159704c6 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: 20170624134742) do
+ActiveRecord::Schema.define(version: 20170625140443) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -257,6 +257,7 @@ ActiveRecord::Schema.define(version: 20170624134742) do
     t.datetime "updated_at", null: false
     t.string "user_agent", default: "", null: false
     t.inet "ip"
+    t.integer "access_token_id"
     t.index ["session_id"], name: "index_session_activations_on_session_id", unique: true
     t.index ["user_id"], name: "index_session_activations_on_user_id"
   end
@@ -406,6 +407,7 @@ ActiveRecord::Schema.define(version: 20170624134742) do
   add_foreign_key "reports", "accounts", column: "action_taken_by_account_id", on_delete: :nullify
   add_foreign_key "reports", "accounts", column: "target_account_id", on_delete: :cascade
   add_foreign_key "reports", "accounts", on_delete: :cascade
+  add_foreign_key "session_activations", "oauth_access_tokens", column: "access_token_id", on_delete: :cascade
   add_foreign_key "session_activations", "users", on_delete: :cascade
   add_foreign_key "statuses", "accounts", column: "in_reply_to_account_id", on_delete: :nullify
   add_foreign_key "statuses", "accounts", on_delete: :cascade