diff --git a/app/jobs/event_created_job.rb b/app/jobs/event_created_job.rb
deleted file mode 100644
index fa576773..00000000
--- a/app/jobs/event_created_job.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class EventCreatedJob
-  include Sidekiq::Job
-
-  def perform(args)
-    event = Event.find(args['id'])
-
-    puts "EventCreatedJob #{event.id}"
-  end
-end
diff --git a/app/models/event.rb b/app/models/event.rb
deleted file mode 100644
index 4ffa498b..00000000
--- a/app/models/event.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class Event < ActiveRecord::Base
-  include Outboxer::Messageable
-
-  self.inheritance_column = :_type_disabled
-
-  attribute :created_at, default: -> { Time.current }
-
-  belongs_to :eventable, polymorphic: true
-
-  validates :type, presence: true
-  validates :eventable, presence: true
-
-  has_outboxer_message dependent: :destroy
-end
diff --git a/app/models/invoice.rb b/app/models/invoice.rb
deleted file mode 100644
index 21651c9e..00000000
--- a/app/models/invoice.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class Invoice < ActiveRecord::Base
-  has_many :events,
-    -> { order(created_at: :asc) },
-    as: :eventable
-end
diff --git a/db/migrate/create_events.rb b/db/migrate/create_events.rb
deleted file mode 100644
index 114cb3ab..00000000
--- a/db/migrate/create_events.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class CreateEvents < ActiveRecord::Migration[6.1]
-  def up
-    create_table :events, force: true do |t|
-      t.string :type, null: false
-      t.jsonb :payload
-
-      t.datetime :created_at, null: false
-
-      t.references :eventable, polymorphic: true, null: false, index: true
-    end
-  end
-
-  def down
-    drop_table :events
-  end
-end
diff --git a/db/migrate/create_invoices.rb b/db/migrate/create_invoices.rb
deleted file mode 100644
index 09809319..00000000
--- a/db/migrate/create_invoices.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class CreateInvoices < ActiveRecord::Migration[6.1]
-  def up
-    create_table :invoices, force: true do |t|
-      t.integer :lock_version, default: 0, null: false
-
-      t.timestamps null: false
-    end
-  end
-
-  def down
-    drop_table :invoices
-  end
-end
-
diff --git a/spec/lib/outboxer/messageable_spec.rb b/spec/lib/outboxer/messageable_spec.rb
deleted file mode 100644
index 9e0859e6..00000000
--- a/spec/lib/outboxer/messageable_spec.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-require 'spec_helper'
-
-RSpec.describe Outboxer::Messageable, type: :model do
-  before(:each) do
-    ActiveRecord::Schema.define do
-      create_table :events, force: true do |_t|
-      end
-    end
-
-    class Event < ActiveRecord::Base
-      include Outboxer::Messageable
-    end
-  end
-
-  after(:each) do
-    if ActiveRecord::Base.connection.table_exists?('events')
-      ActiveRecord::Migration.drop_table('events')
-    end
-
-    Object.send(:remove_const, :Event) if Object.const_defined?(:Event)
-  end
-
-  context 'when model created' do
-    let(:event) { Event.create! }
-    let(:outboxer_message) { event.outboxer_message }
-
-    it 'creates outboxer message' do
-      expect(outboxer_message.status).to eq(Outboxer::Models::Message::Status::UNPUBLISHED)
-      expect(outboxer_message.messageable_type).to eq(event.class.to_s)
-      expect(outboxer_message.messageable_id).to eq(event.id)
-      expect(outboxer_message.created_at).to be_present
-      expect(outboxer_message.updated_at).to be_present
-    end
-  end
-end
diff --git a/tasks/database.rake b/tasks/database.rake
index c2eca24b..a3cb3784 100644
--- a/tasks/database.rake
+++ b/tasks/database.rake
@@ -28,12 +28,6 @@ namespace :outboxer do
       db_config = Outboxer::Database.config(environment: environment)
       ActiveRecord::Base.establish_connection(db_config)
 
-      require_relative "../db/migrate/create_invoices"
-      CreateInvoices.new.up
-
-      require_relative "../db/migrate/create_events"
-      CreateEvents.new.up
-
       require_relative "../db/migrate/create_outboxer_messages"
       CreateOutboxerMessages.new.up