diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 69677f6..c084b8b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,22 +2,26 @@ name: CI
 on:
   pull_request:
   push:
-    branches:
-      - master
+    branches: [master]
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
 jobs:
   test:
-    name: Tests with Ruby ${{ matrix.ruby }} Rails ${{ matrix.rails }} Active Admin ${{ matrix.activeadmin }}
+    name: Ruby ${{ matrix.ruby }} / Rails ${{ matrix.rails }} / AA ${{ matrix.activeadmin }}
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        ruby:
-          - '3.2.0'
-          - '3.3.0'
-        rails:
-          - '7.1.0'
-          - '7.2.0'
-        activeadmin:
-          - '3.3.0'
+        ruby: ['3.2', '3.3', '3.4']
+        rails: ['7.1.0', '7.2.0', '8.0.0']
+        activeadmin: ['3.2.0', '3.3.0', '3.4.0', '3.5.0']
+        exclude:
+          - rails: '8.0.0'
+            activeadmin: '3.2.0'
     env:
       RAILS: ${{ matrix.rails }}
       AA: ${{ matrix.activeadmin }}
@@ -26,8 +30,58 @@ jobs:
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
       - name: Run tests
+        run: bundle exec rspec spec
+
+      - name: Generate badge.json
+        if: matrix.ruby == '3.4' && matrix.rails == '8.0.0' && matrix.activeadmin == '3.5.0'
         run: |
-          gem install bundler -v '< 2'
-          bundle install
-          bundle exec rspec spec
+          LAST_RUN="coverage/.last_run.json"
+          if [ ! -f "$LAST_RUN" ]; then
+            mkdir -p badge
+            echo '{"schemaVersion":1,"label":"coverage","message":"unknown","color":"lightgrey"}' > badge/badge.json
+            exit 0
+          fi
+          PERCENT=$(ruby -rjson -e "puts JSON.parse(File.read('$LAST_RUN')).dig('result','line').round(1)")
+          PERCENT_NUM=$(ruby -rjson -e "puts JSON.parse(File.read('$LAST_RUN')).dig('result','line')")
+          if ruby -e "exit(($PERCENT_NUM >= 90) ? 0 : 1)"; then COLOR="brightgreen"
+          elif ruby -e "exit(($PERCENT_NUM >= 75) ? 0 : 1)"; then COLOR="green"
+          elif ruby -e "exit(($PERCENT_NUM >= 60) ? 0 : 1)"; then COLOR="yellow"
+          else COLOR="red"; fi
+          mkdir -p badge
+          echo "{\"schemaVersion\":1,\"label\":\"coverage\",\"message\":\"${PERCENT}%\",\"color\":\"${COLOR}\"}" > badge/badge.json
+
+      - name: Upload badge artifact
+        if: matrix.ruby == '3.4' && matrix.rails == '8.0.0' && matrix.activeadmin == '3.5.0'
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-badge
+          path: badge
+
+  deploy-coverage:
+    needs: test
+    if: github.ref == 'refs/heads/master' && github.event_name == 'push'
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    steps:
+      - name: Download coverage badge
+        uses: actions/download-artifact@v4
+        with:
+          name: coverage-badge
+          path: coverage
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+
+      - name: Upload Pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: coverage
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4
diff --git a/Gemfile b/Gemfile
index 01c54cf..a54dcbc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,24 +1,21 @@
 source 'https://rubygems.org'
-
 gemspec
 
-group :test do
-  default_rails_version = '7.1.0'
-  default_activeadmin_version = '3.2.0'
+default_rails_version = '7.1.0'
+default_activeadmin_version = '3.5.0'
 
-  gem 'rails', "~> #{ENV['RAILS'] || default_rails_version}"
-  gem 'activeadmin', "~> #{ENV['AA'] || default_activeadmin_version}"
+gem 'rails', "~> #{ENV['RAILS'] || default_rails_version}"
+gem 'activeadmin', "~> #{ENV['AA'] || default_activeadmin_version}"
+gem 'sprockets-rails'
+gem 'sass-rails'
 
-  gem 'sprockets-rails'
+group :test do
+  gem 'simplecov', require: false
   gem 'rspec-rails'
-  gem 'coveralls_reborn', require: false
-  gem 'sass-rails'
-  gem 'sqlite3', '~> 1.4.0'
-  gem 'launchy'
+  gem 'sqlite3', '~> 2.0'
   gem 'database_cleaner'
   gem 'capybara'
-  gem 'webdrivers'
-  gem 'byebug'
+  gem 'cuprite'
   gem 'draper'
   gem 'webrick', require: false
 end
diff --git a/README.md b/README.md
index 1facfb2..22bc15e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 [![Build Status](https://github.com/activeadmin-plugins/active_admin_scoped_collection_actions/actions/workflows/ci.yml/badge.svg)](https://github.com/activeadmin-plugins/active_admin_scoped_collection_actions/actions/workflows/ci.yml)
+![Coverage](https://img.shields.io/endpoint?url=https://activeadmin-plugins.github.io/active_admin_scoped_collection_actions/badge.json)
 
 
 # ActiveAdmin Scoped Collection Actions
diff --git a/active_admin_scoped_collection_actions.gemspec b/active_admin_scoped_collection_actions.gemspec
index a7a785b..3101124 100644
--- a/active_admin_scoped_collection_actions.gemspec
+++ b/active_admin_scoped_collection_actions.gemspec
@@ -12,10 +12,12 @@ Gem::Specification.new do |spec|
   spec.homepage      = "https://github.com/activeadmin-plugins/active_admin_scoped_collection_actions"
   spec.license       = "MIT"
 
+  spec.required_ruby_version = '>= 3.1.0'
+
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "activeadmin", ">= 1.1", "< 4.0"
+  spec.add_dependency "activeadmin", ">= 3.0", "< 4.0"
 end
diff --git a/lib/active_admin_scoped_collection_actions/version.rb b/lib/active_admin_scoped_collection_actions/version.rb
index 3d83a1a..bf65707 100644
--- a/lib/active_admin_scoped_collection_actions/version.rb
+++ b/lib/active_admin_scoped_collection_actions/version.rb
@@ -1,3 +1,3 @@
 module ActiveAdminScopedCollectionActions
-  VERSION = '1.0.1'.freeze
+  VERSION = '2.0.0'.freeze
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 64e4eea..1e1713d 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,8 @@
+require 'simplecov'
+SimpleCov.start do
+  add_filter '/spec/'
+end
+
 $LOAD_PATH.unshift(File.dirname(__FILE__))
 $LOAD_PATH << File.expand_path('../support', __FILE__)
 
@@ -29,8 +34,6 @@
 require 'rspec/rails'
 require 'capybara/rails'
 require 'capybara/rspec'
-require 'selenium-webdriver'
-
 require 'support/admin'
 require 'support/capybara'
 
@@ -38,6 +41,7 @@
   config.use_transactional_fixtures = false
 
   config.before(:suite) do
+    ActiveRecord::Migration.maintain_test_schema!
     DatabaseCleaner.strategy = :truncation
     DatabaseCleaner.clean_with(:truncation)
   end
diff --git a/spec/support/capybara.rb b/spec/support/capybara.rb
index 9e644a4..e09d7e9 100644
--- a/spec/support/capybara.rb
+++ b/spec/support/capybara.rb
@@ -1,16 +1,8 @@
-Capybara.server = :webrick
-
-Capybara.configure do |config|
-  config.match = :prefer_exact
-end
+require 'capybara/cuprite'
 
-Webdrivers::Chromedriver.update
-
-Capybara.register_driver :selenium_chrome do |app|
-  options = Selenium::WebDriver::Chrome::Options.new(
-    args: %w[headless disable-gpu no-sandbox]
-  )
-  Capybara::Selenium::Driver.new(app, browser: :chrome, options: options)
+Capybara.server = :webrick
+Capybara.register_driver :cuprite do |app|
+  Capybara::Cuprite::Driver.new(app, headless: true, window_size: [1280, 800])
 end
-
-Capybara.javascript_driver = :selenium_chrome
+Capybara.javascript_driver = :cuprite
+Capybara.default_max_wait_time = 5
diff --git a/spec/support/rails_template.rb b/spec/support/rails_template.rb
index ecaa23e..02fe183 100644
--- a/spec/support/rails_template.rb
+++ b/spec/support/rails_template.rb
@@ -1,7 +1,11 @@
 # Rails template to build the sample app for specs
 
-generate :model, 'author name:string{10}:uniq last_name:string birthday:date'
-generate :model, 'post title:string:uniq body:text author:references'
+# Ensure Sprockets manifest exists (Rails 8.0+ no longer generates it)
+FileUtils.mkdir_p("app/assets/config")
+File.write("app/assets/config/manifest.js", "//= link_tree ../images\n")
+
+generate :model, 'author name:string{10}:uniq last_name:string birthday:date --force'
+generate :model, 'post title:string:uniq body:text author:references --force'
 
 #Add validation
 inject_into_file "app/models/author.rb", "  validates_presence_of :name\n  validates_uniqueness_of :last_name\n", after: "ApplicationRecord\n"
@@ -23,15 +27,10 @@
   "  end\n",
   after: "ApplicationRecord\n"
 
-# Configure default_url_options in test environment
-inject_into_file "config/environments/test.rb", "  config.action_mailer.default_url_options = { :host => 'example.com' }\n", after: "config.cache_classes = true\n"
-
-# Add our local Active Admin to the load path
-inject_into_file "config/environment.rb",
-                 "\n$LOAD_PATH.unshift('#{File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'lib'))}')\nrequire \"active_admin\"\n",
-                 after: "require File.expand_path('../application', __FILE__)"
-
-run "rm Gemfile"
+# Add our local Active Admin to the load path (Rails 7.1+)
+gsub_file "config/environment.rb",
+  'require_relative "application"',
+  "require_relative \"application\"\n$LOAD_PATH.unshift('#{File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'lib'))}')\nrequire \"active_admin\"\n"
 
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
 
@@ -39,24 +38,18 @@
 generate :'formtastic:install'
 generate :'decorator Author'
 
-# Install active_admin_date_time_datetimepicker assets
+# Install active_admin_scoped_collection_actions assets
 inject_into_file "app/assets/stylesheets/active_admin.scss",
                  "@import \"active_admin_scoped_collection_actions\";\n",
                  after: "@import \"active_admin/base\";\n"
 
-if File.file?("app/assets/javascripts/active_admin.js.coffee")
-  inject_into_file "app/assets/javascripts/active_admin.js.coffee",
-                   "#= require active_admin_scoped_collection_actions\n",
-                   after: "#= require active_admin/base\n"
-else
-  inject_into_file "app/assets/javascripts/active_admin.js",
-                  "//= require active_admin_scoped_collection_actions\n",
-                  after: "//= require active_admin/base\n"
-end
-
-run "rm -r test"
-run "rm -r spec"
+inject_into_file "app/assets/javascripts/active_admin.js",
+                "//= require active_admin_scoped_collection_actions\n",
+                after: "//= require active_admin/base\n"
 
+run "rm -rf test"
 route "root :to => 'admin/dashboard#index'"
-
 rake "db:migrate"
+
+# Remove Gemfile last so rake/route/generate work during template
+run "rm -f Gemfile Gemfile.lock"
diff --git a/vendor/assets/javascripts/lib/dialog_mass_fields_update.js b/vendor/assets/javascripts/lib/dialog_mass_fields_update.js
index 53fcbda..9f28e80 100644
--- a/vendor/assets/javascripts/lib/dialog_mass_fields_update.js
+++ b/vendor/assets/javascripts/lib/dialog_mass_fields_update.js
@@ -47,6 +47,7 @@ ActiveAdmin.dialogMassFieldsUpdate = function(message, inputs, callback){
 
   return form.dialog({
     modal: true,
+    classes: { 'ui-dialog': 'ui-corner-all active_admin_dialog active_admin_dialog_mass_update_by_filter' },
     dialogClass: 'active_admin_dialog active_admin_dialog_mass_update_by_filter',
     maxHeight: window.innerHeight - (window.innerHeight * 0.1),
     open() {