diff --git a/.github/workflows/specs.yml b/.github/workflows/specs.yml
index 2eab4dc..28913eb 100644
--- a/.github/workflows/specs.yml
+++ b/.github/workflows/specs.yml
@@ -17,10 +17,19 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
-          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+          bundler-cache: true
+
       - name: Run tests
         run: bundle exec rake
+
+      - name: Archive screenshots for failed tests
+        uses: actions/upload-artifact@v2
+        if: failure()
+        with:
+          name: test-failed-screenshots
+          path: spec/dummy/tmp/screenshots
diff --git a/.reek.yml b/.reek.yml
new file mode 100644
index 0000000..60ec1c7
--- /dev/null
+++ b/.reek.yml
@@ -0,0 +1,11 @@
+---
+exclude_paths:
+  - spec/dummy
+  - vendor
+
+detectors:
+  IrresponsibleModule:
+    enabled: false
+  TooManyStatements:
+    # default 5
+    max_statements: 10
diff --git a/.rubocop.yml b/.rubocop.yml
index 6bcb7ad..0042f74 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,6 +1,12 @@
 inherit_from:
   - https://relaxed.ruby.style/rubocop.yml
 
+require:
+  - rubocop-packaging
+  - rubocop-performance
+  - rubocop-rails
+  - rubocop-rspec
+
 AllCops:
   Exclude:
     - bin/*
@@ -17,6 +23,14 @@ Layout/LineLength:
   Enabled: true
   Max: 120
 
+RSpec/ExampleLength:
+  # default 5
+  Max: 12
+
+RSpec/MultipleExpectations:
+  # default 1
+  Max: 4
+
 Style/HashEachMethods:
   Enabled: true
 
diff --git a/Gemfile b/Gemfile
index ca9563c..43e4de0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,13 +4,22 @@ source 'https://rubygems.org'
 
 gemspec
 
+# Linters
+gem 'brakeman'
+gem 'fasterer'
+gem 'reek'
+gem 'rubocop'
+gem 'rubocop-packaging'
+gem 'rubocop-performance'
+gem 'rubocop-rails'
+gem 'rubocop-rspec'
+
 group :development, :test do
   gem 'activestorage', '~> 6.0'
   gem 'capybara', '~> 3.33'
   gem 'puma', '~> 4.3'
   gem 'rspec_junit_formatter', '~> 0.4'
   gem 'rspec-rails', '~> 4.0'
-  gem 'rubocop', '~> 1.0'
   gem 'selenium-webdriver', '~> 3.142'
   gem 'sprockets-rails', '~> 3.2'
   gem 'sqlite3', '~> 1.4'
diff --git a/bin/brakeman b/bin/brakeman
new file mode 100755
index 0000000..4b79003
--- /dev/null
+++ b/bin/brakeman
@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'brakeman' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+bundle_binstub = File.expand_path("../bundle", __FILE__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300) =~ /This file was generated by Bundler/
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("brakeman", "brakeman")
diff --git a/bin/code_climate_reek b/bin/code_climate_reek
new file mode 100755
index 0000000..9bb9536
--- /dev/null
+++ b/bin/code_climate_reek
@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'code_climate_reek' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+bundle_binstub = File.expand_path("../bundle", __FILE__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300) =~ /This file was generated by Bundler/
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("reek", "code_climate_reek")
diff --git a/bin/fasterer b/bin/fasterer
new file mode 100755
index 0000000..b87e7ae
--- /dev/null
+++ b/bin/fasterer
@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'fasterer' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+bundle_binstub = File.expand_path("../bundle", __FILE__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300) =~ /This file was generated by Bundler/
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("fasterer", "fasterer")
diff --git a/bin/reek b/bin/reek
new file mode 100755
index 0000000..cafe88d
--- /dev/null
+++ b/bin/reek
@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'reek' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+bundle_binstub = File.expand_path("../bundle", __FILE__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300) =~ /This file was generated by Bundler/
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("reek", "reek")
diff --git a/examples/upload_plugin_using_activestorage/app/admin/posts.rb b/examples/upload_plugin_using_activestorage/app/admin/posts.rb
index 869860f..cda7a25 100644
--- a/examples/upload_plugin_using_activestorage/app/admin/posts.rb
+++ b/examples/upload_plugin_using_activestorage/app/admin/posts.rb
@@ -41,7 +41,7 @@ ActiveAdmin.register Post do
       row :images do |resurce|
         resurce.images.each do |image|
           div do
-            link_to image.filename, image, target: '_blank'
+            link_to image.filename, image, target: '_blank', rel: 'noopener'
           end
         end
         nil