diff --git a/Gemfile b/Gemfile
index 5e91d1425a..bea8400412 100644
--- a/Gemfile
+++ b/Gemfile
@@ -59,6 +59,7 @@ gem 'redis', '~> 3.3', require: ['redis', 'redis/connection/hiredis']
 gem 'mario-redis-lock', '~> 1.2', require: 'redis_lock'
 gem 'rqrcode', '~> 0.10'
 gem 'ruby-oembed', '~> 0.12', require: 'oembed'
+gem 'ruby-progressbar', '~> 1.4'
 gem 'sanitize', '~> 4.4'
 gem 'sidekiq', '~> 5.0'
 gem 'sidekiq-scheduler', '~> 2.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index 72d323dcb4..8af7872afc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -623,6 +623,7 @@ DEPENDENCIES
   rspec-sidekiq (~> 3.0)
   rubocop
   ruby-oembed (~> 0.12)
+  ruby-progressbar (~> 1.4)
   sanitize (~> 4.4)
   scss_lint (~> 0.55)
   sidekiq (~> 5.0)
@@ -645,4 +646,4 @@ RUBY VERSION
    ruby 2.4.2p198
 
 BUNDLED WITH
-   1.16.0
+   1.16.1
diff --git a/db/migrate/20171226094803_more_faster_index_on_notifications.rb b/db/migrate/20171226094803_more_faster_index_on_notifications.rb
new file mode 100644
index 0000000000..b2e53b82dd
--- /dev/null
+++ b/db/migrate/20171226094803_more_faster_index_on_notifications.rb
@@ -0,0 +1,7 @@
+class MoreFasterIndexOnNotifications < ActiveRecord::Migration[5.1]
+  def change
+    commit_db_transaction
+    add_index :notifications, [:account_id, :id], order: { id: :desc }, algorithm: :concurrently
+    remove_index :notifications, name: :index_notifications_on_id_and_account_id_and_activity_type
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 9410cdab59..b480c9c462 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: 20171212195226) do
+ActiveRecord::Schema.define(version: 20171226094803) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -268,8 +268,8 @@ ActiveRecord::Schema.define(version: 20171212195226) do
     t.bigint "account_id"
     t.bigint "from_account_id"
     t.index ["account_id", "activity_id", "activity_type"], name: "account_activity", unique: true
+    t.index ["account_id", "id"], name: "index_notifications_on_account_id_and_id", order: { id: :desc }
     t.index ["activity_id", "activity_type"], name: "index_notifications_on_activity_id_and_activity_type"
-    t.index ["id", "account_id", "activity_type"], name: "index_notifications_on_id_and_account_id_and_activity_type", order: { id: :desc }
   end
 
   create_table "oauth_access_grants", force: :cascade do |t|