diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 8219711..71b552c 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -7,15 +7,15 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v1
-      - name: Set up Ruby 2.7.2
+      - uses: actions/checkout@v2
+      - name: Set up Ruby 3.0.2
         uses: actions/setup-ruby@v1
         with:
-          ruby-version: 2.7.2
+          ruby-version: 3.0.2
       - name: Build
         run: |
           sudo apt-get install libsqlite3-dev
-          gem install bundler:2.2.15
+          gem install bundler:2.2.30
           bundle install --jobs 4 --retry 3
       - name: Run tests
         run: bundle exec rspec
diff --git a/.rubocop.yml b/.rubocop.yml
index d68eb36..1ababa7 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -4,7 +4,7 @@ inherit_gem:
    rubocop-shopify: rubocop.yml
 
 AllCops:
-  TargetRubyVersion: 2.7.2
+  TargetRubyVersion: 3.0.2
   # RuboCop has a bunch of cops enabled by default. This setting tells RuboCop
   # to ignore them, so only the ones explicitly set in this file are enabled.
   DisabledByDefault: true
diff --git a/.tool-versions b/.tool-versions
index 9eb38ed..a2e7782 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1 +1 @@
-ruby 2.7.2
+ruby 3.0.2
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 31f7901..93c170a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v2.0.3
+
+- new config option: `disable_async_migrations` to disable async migrations
+
 ## v2.0.2
 
 - `slack_git_url_mapping_for_envs` has become `slack_git_url`, and now accepts only a single URL
diff --git a/Gemfile.lock b/Gemfile.lock
index 2f811ba..ac0f452 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    rails_async_migrations (2.0.0)
+    rails_async_migrations (2.0.3)
 
 GEM
   remote: https://rubygems.org/
@@ -67,7 +67,6 @@ GEM
       zeitwerk (~> 2.3)
     ast (2.4.2)
     builder (3.2.4)
-    coderay (1.1.3)
     concurrent-ruby (1.1.8)
     connection_pool (2.2.3)
     crass (1.0.6)
@@ -77,6 +76,9 @@ GEM
       activerecord (>= 5.a)
       database_cleaner-core (~> 2.0.0)
     database_cleaner-core (2.0.1)
+    debug (1.3.4)
+      irb (>= 1.3.6)
+      reline (>= 0.2.7)
     delayed_job (4.1.9)
       activesupport (>= 3.0, < 6.2)
     delayed_job_active_record (4.1.6)
@@ -91,6 +93,9 @@ GEM
       activesupport (>= 4.2.0)
     i18n (1.8.10)
       concurrent-ruby (~> 1.0)
+    io-console (0.5.9)
+    irb (1.3.7)
+      reline (>= 0.2.7)
     loofah (2.9.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
@@ -106,9 +111,6 @@ GEM
     parallel (1.20.1)
     parser (3.0.0.0)
       ast (~> 2.4.1)
-    pry (0.14.0)
-      coderay (~> 1.1)
-      method_source (~> 1.0)
     racc (1.5.2)
     rack (2.2.3)
     rack-test (1.1.0)
@@ -143,6 +145,8 @@ GEM
     rake (13.0.3)
     redis (4.2.5)
     regexp_parser (2.1.1)
+    reline (0.2.7)
+      io-console (~> 0.5)
     rexml (3.2.4)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
@@ -174,8 +178,8 @@ GEM
     rubocop-shopify (2.0.1)
       rubocop (~> 1.11)
     ruby-progressbar (1.11.0)
-    shoulda-matchers (4.5.1)
-      activesupport (>= 4.2.0)
+    shoulda-matchers (5.0.0)
+      activesupport (>= 5.2.0)
     sidekiq (6.2.0)
       connection_pool (>= 2.2.2)
       rack (~> 2.0)
@@ -204,19 +208,19 @@ PLATFORMS
 DEPENDENCIES
   activerecord (~> 6.1)
   database_cleaner (~> 2.0)
+  debug (~> 1.3)
   delayed_job_active_record (~> 4.1)
-  fantaskspec (~> 1)
-  pry (~> 0.14)
-  rails (~> 6.1)
+  fantaskspec (~> 1.2)
+  rails (~> 6.1, < 7.0.0)
   rails_async_migrations!
   rake (~> 13)
   rspec (~> 3.10)
   rspec-sidekiq (~> 3.1)
   rubocop-shopify
-  shoulda-matchers (~> 4)
+  shoulda-matchers (~> 5)
   sidekiq (~> 6.2)
   slack-notifier (~> 2.3)
   sqlite3 (~> 1.4.2)
 
 BUNDLED WITH
-   2.2.15
+   2.2.30
diff --git a/README.md b/README.md
index 9d5a29b..8d6124f 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # RailsAsyncMigrations
 
-`ActiveRecord::Migration` extension to turn your migrations asynschonous in a simple and straight forward way.
+`ActiveRecord::Migration` extension to turn your migrations asynchronous in a simple and straight forward way.
 
 ## Motives
 
@@ -61,7 +61,7 @@ After the gem has been installed, use the generator to add the needed changes
 
 This will add a new migration for the table `async_schema_migrations` which will be used by the gem. You can also add the migration yourself like so:
 
-```
+```ruby
 class CreateAsyncSchemaMigrations < ActiveRecord::Migration[6.0]
   def change
     create_table :async_schema_migrations do |t|
@@ -79,7 +79,7 @@ end
 
 To turn some of your migrations asynchronous, generate a migration as you would normally do and use the `turn_async` keyword.
 
-```
+```ruby
 class Test < ActiveRecord::Migration[6.0]
   turn_async
 
@@ -101,7 +101,7 @@ What is turned asynchronous is executed exactly the same way as a classical migr
 
 Add the following lines into your `config/initializer/` folder
 
-```
+```ruby
 RailsAsyncMigrations.config do |config|
   # :verbose can be used if you want a full log of the execution
   config.mode = :quiet
@@ -109,6 +109,9 @@ RailsAsyncMigrations.config do |config|
   # which adapter worker you want to use for this library
   # for now you have two options: :delayed_job or :sidekiq
   config.workers = :sidekiq
+
+  ## You can disable the gem using the following configuration option: 
+  # config.disable_async_migrations = true
 end
 ```
 
@@ -125,7 +128,7 @@ You can also manually launch the queue check and fire by using:
 
     $ rake rails_async_migrations:check_queue
 
-**For now, there is no rollback mechanism authorized. It means if you rollback the asynchronous migrations will be simply ignored. Handling multiple directions complexifies the build up logic and may not be needed in asynchronous cases.**
+**For now, there is no rollback mechanism authorized. It means if you rollback the asynchronous migrations will be simply ignored. Handling multiple directions renders the build up logic more complex and may not be needed in asynchronous cases.**
 
 ## States
 
@@ -180,6 +183,11 @@ rspec
 
 [Laurent Schaffner](http://www.laurentschaffner.com)
 
+## Contributors
+
+[@SeanLF](https://github.com/SeanLF)
+[@nept](https://github.com/nept)
+
 ## Credits
 
 This project and its idea was inspired by [Kir Shatrov article](https://kirshatrov.com/2018/04/01/async-migrations/) on the matter, it's worth a look!
diff --git a/bin/console b/bin/console
index eb55a7d..96ac490 100755
--- a/bin/console
+++ b/bin/console
@@ -2,6 +2,7 @@
 
 require "bundler/setup"
 require "rails_async_migrations"
+require "debug"
 
 # You can add fixtures and/or initialization code here to make experimenting
 # with your gem easier. You can also use a different console, if you like.
diff --git a/docker-compose.yml b/docker-compose.yml
index bda7581..26090d7 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -6,8 +6,8 @@ services:
       context: .
       dockerfile: Dockerfile
       args:
-        RUBY_VERSION: "2.7.2"
-        BUNDLER_VERSION: "2.2.15"
+        RUBY_VERSION: "3.0.2"
+        BUNDLER_VERSION: "2.2.30"
     image: rails-async-migrations
     tmpfs:
       - /tmp
diff --git a/lib/rails_async_migrations/class_mutators.rb b/lib/rails_async_migrations/class_mutators.rb
index f15f20a..a97d43b 100644
--- a/lib/rails_async_migrations/class_mutators.rb
+++ b/lib/rails_async_migrations/class_mutators.rb
@@ -9,6 +9,8 @@
 module RailsAsyncMigrations
   module ClassMutators
     def turn_async
+      return if RailsAsyncMigrations.config.disable_async_migrations
+
       Mutators::TurnAsync.new(self).perform
     end
   end
diff --git a/lib/rails_async_migrations/config.rb b/lib/rails_async_migrations/config.rb
index b7cd374..c3e64c2 100644
--- a/lib/rails_async_migrations/config.rb
+++ b/lib/rails_async_migrations/config.rb
@@ -3,13 +3,14 @@
 # default values set here
 module RailsAsyncMigrations
   class Config
-    attr_accessor :taken_methods, :mode, :workers, :queue, :slack_webhook_url, :slack_title_message, :slack_git_url
+    attr_accessor :taken_methods, :mode, :workers, :queue, :slack_webhook_url, :slack_title_message, :slack_git_url, :disable_async_migrations
 
     def initialize
       @taken_methods = %i[change up down]
       @mode = :quiet # :verbose, :quiet
       @workers = :sidekiq # :delayed_job
       @queue = :default
+      @disable_async_migrations = false
     end
 
     def slack_git_url=(value)
diff --git a/lib/rails_async_migrations/version.rb b/lib/rails_async_migrations/version.rb
index 8f02133..10dd3d2 100644
--- a/lib/rails_async_migrations/version.rb
+++ b/lib/rails_async_migrations/version.rb
@@ -1,4 +1,4 @@
 # frozen_string_literal: true
 module RailsAsyncMigrations
-  VERSION = "2.0.2"
+  VERSION = "2.0.3"
 end
diff --git a/rails_async_migrations.gemspec b/rails_async_migrations.gemspec
index 1242cbf..29d84b0 100644
--- a/rails_async_migrations.gemspec
+++ b/rails_async_migrations.gemspec
@@ -19,14 +19,14 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_development_dependency 'pry', '~> 0.14'
+  spec.add_development_dependency 'debug', '~> 1.3'
   spec.add_development_dependency 'rubocop-shopify'
-  spec.add_development_dependency 'rails', '~> 6.1'
+  spec.add_development_dependency 'rails', '~> 6.1', "< 7.0.0"
   spec.add_development_dependency 'rake', '~> 13'
   spec.add_development_dependency 'sqlite3', '~> 1.4.2'
   spec.add_development_dependency 'rspec', '~> 3.10'
   spec.add_development_dependency 'database_cleaner', '~> 2.0'
   spec.add_development_dependency 'rspec-sidekiq', '~> 3.1'
-  spec.add_development_dependency 'shoulda-matchers', '~> 4'
-  spec.add_development_dependency 'fantaskspec', '~> 1'
+  spec.add_development_dependency 'shoulda-matchers', '~> 5'
+  spec.add_development_dependency 'fantaskspec', '~> 1.2'
 end
diff --git a/spec/rails_async_migrations/mutators/turn_async_spec.rb b/spec/rails_async_migrations/mutators/turn_async_spec.rb
index ec86673..6d4d2f8 100644
--- a/spec/rails_async_migrations/mutators/turn_async_spec.rb
+++ b/spec/rails_async_migrations/mutators/turn_async_spec.rb
@@ -1,10 +1,13 @@
 # frozen_string_literal: true
 RSpec.describe(RailsAsyncMigrations::Mutators::TurnAsync) do
-  let(:instance) { described_class.new(migration_class) }
-  let(:migration_class) { FakeMigration }
+  
+  describe '#perform' do
+    let(:instance) { described_class.new(migration_class) }
+    let(:migration_class) { FakeMigration }
 
-  context '#perform' do
-    subject { instance.perform }
-    it { is_expected.to(be_truthy) }
+    context "async migrations enabled" do
+      subject { instance.perform }
+      it { is_expected.to(be_truthy) }
+    end
   end
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 4c006ef..db5184e 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 require 'bundler/setup'
-require 'pry'
+require 'debug'
 require 'rails_async_migrations'
 
 require 'logger'
diff --git a/spec/support/utils_helpers.rb b/spec/support/utils_helpers.rb
index c43c3b3..9d262e4 100644
--- a/spec/support/utils_helpers.rb
+++ b/spec/support/utils_helpers.rb
@@ -36,6 +36,12 @@ def fake_migration_proxy!
       FakeMigrationProxy.new
     ))
   end
+
+  def disable_async_migrations!
+    RailsAsyncMigrations.config do |config|
+      config.disable_async_migrations = true
+    end
+  end
 end
 
 class FakeMigrationProxy