diff --git a/.rspec b/.rspec
index 6378586..a35c44f 100644
--- a/.rspec
+++ b/.rspec
@@ -1,2 +1 @@
 --require rails_helper
---format documentation
diff --git a/Appraisals b/Appraisals
index e89f433..cd71bf3 100644
--- a/Appraisals
+++ b/Appraisals
@@ -13,11 +13,9 @@ end
 appraise 'rails70-activeadmin' do
   gem 'activeadmin'
   gem 'rails', '~> 7.0.0'
-  gem 'sprockets-rails'
 end
 
 appraise 'rails71-activeadmin' do
   gem 'activeadmin'
   gem 'rails', '~> 7.1.0'
-  gem 'sprockets-rails'
 end
diff --git a/Gemfile b/Gemfile
index 8450e3b..63f9fd8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,7 @@ gemspec
 group :development, :test do
   gem 'puma'
   gem 'sassc'
+  gem 'sprockets-rails'
   gem 'sqlite3'
 
   # Testing
diff --git a/gemfiles/rails61_activeadmin.gemfile b/gemfiles/rails61_activeadmin.gemfile
index 184df44..566be21 100644
--- a/gemfiles/rails61_activeadmin.gemfile
+++ b/gemfiles/rails61_activeadmin.gemfile
@@ -8,6 +8,7 @@ gem "rails", "~> 6.1.0"
 group :development, :test do
   gem "puma"
   gem "sassc"
+  gem "sprockets-rails"
   gem "sqlite3"
   gem "capybara"
   gem "cuprite"
diff --git a/gemfiles/rails61_activeadmin.gemfile.lock b/gemfiles/rails61_activeadmin.gemfile.lock
index 0e16bf0..b9aaf93 100644
--- a/gemfiles/rails61_activeadmin.gemfile.lock
+++ b/gemfiles/rails61_activeadmin.gemfile.lock
@@ -337,6 +337,7 @@ DEPENDENCIES
   rubocop-rails
   rubocop-rspec
   sassc
+  sprockets-rails
   sqlite3
 
 BUNDLED WITH
diff --git a/gemfiles/rails61_activeadmin29.gemfile b/gemfiles/rails61_activeadmin29.gemfile
index ef2dbe8..c3674ea 100644
--- a/gemfiles/rails61_activeadmin29.gemfile
+++ b/gemfiles/rails61_activeadmin29.gemfile
@@ -8,6 +8,7 @@ gem "rails", "~> 6.1.0"
 group :development, :test do
   gem "puma"
   gem "sassc"
+  gem "sprockets-rails"
   gem "sqlite3"
   gem "capybara"
   gem "cuprite"
diff --git a/gemfiles/rails61_activeadmin29.gemfile.lock b/gemfiles/rails61_activeadmin29.gemfile.lock
index ca17d1f..c275519 100644
--- a/gemfiles/rails61_activeadmin29.gemfile.lock
+++ b/gemfiles/rails61_activeadmin29.gemfile.lock
@@ -337,6 +337,7 @@ DEPENDENCIES
   rubocop-rails
   rubocop-rspec
   sassc
+  sprockets-rails
   sqlite3
 
 BUNDLED WITH
diff --git a/gemfiles/rails70_activeadmin.gemfile b/gemfiles/rails70_activeadmin.gemfile
index 0e673ab..8804b01 100644
--- a/gemfiles/rails70_activeadmin.gemfile
+++ b/gemfiles/rails70_activeadmin.gemfile
@@ -4,11 +4,11 @@ source "https://rubygems.org"
 
 gem "activeadmin"
 gem "rails", "~> 7.0.0"
-gem "sprockets-rails"
 
 group :development, :test do
   gem "puma"
   gem "sassc"
+  gem "sprockets-rails"
   gem "sqlite3"
   gem "capybara"
   gem "cuprite"
diff --git a/gemfiles/rails71_activeadmin.gemfile b/gemfiles/rails71_activeadmin.gemfile
index 951c36c..c88fd13 100644
--- a/gemfiles/rails71_activeadmin.gemfile
+++ b/gemfiles/rails71_activeadmin.gemfile
@@ -4,11 +4,11 @@ source "https://rubygems.org"
 
 gem "activeadmin"
 gem "rails", "~> 7.1.0"
-gem "sprockets-rails"
 
 group :development, :test do
   gem "puma"
   gem "sassc"
+  gem "sprockets-rails"
   gem "sqlite3"
   gem "capybara"
   gem "cuprite"
diff --git a/spec/dummy/.ruby-version b/spec/dummy/.ruby-version
deleted file mode 100644
index bff6ce5..0000000
--- a/spec/dummy/.ruby-version
+++ /dev/null
@@ -1 +0,0 @@
-ruby-2.7.1
diff --git a/spec/dummy/.tool-versions b/spec/dummy/.tool-versions
deleted file mode 100644
index 1c44dd0..0000000
--- a/spec/dummy/.tool-versions
+++ /dev/null
@@ -1 +0,0 @@
-ruby 2.6.6
diff --git a/spec/dummy/app/admin/profiles.rb b/spec/dummy/app/admin/profiles.rb
new file mode 100644
index 0000000..37ed262
--- /dev/null
+++ b/spec/dummy/app/admin/profiles.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+ActiveAdmin.register Profile do
+  permit_params :author_id, :description
+end
diff --git a/spec/dummy/app/models/author.rb b/spec/dummy/app/models/author.rb
index b05a0d2..0c328c2 100644
--- a/spec/dummy/app/models/author.rb
+++ b/spec/dummy/app/models/author.rb
@@ -24,7 +24,9 @@ class Author < ApplicationRecord
     "#{name} (#{age})"
   end
 
-  def self.ransackable_attributes(auth_object = nil)
-    %w[age created_at email id name updated_at]
+  class << self
+    def ransackable_attributes(_auth_object = nil)
+      %w[age created_at email id name updated_at]
+    end
   end
 end
diff --git a/spec/dummy/app/models/post.rb b/spec/dummy/app/models/post.rb
index 7003055..3eb4c23 100644
--- a/spec/dummy/app/models/post.rb
+++ b/spec/dummy/app/models/post.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Post < ApplicationRecord
-  enum state: %i[available unavailable arriving]
+  # enum state: %i[available unavailable arriving]
 
   belongs_to :author, inverse_of: :posts, autosave: true
 
@@ -27,11 +27,13 @@ class Post < ApplicationRecord
     title.upcase
   end
 
-  def self.ransackable_attributes(auth_object = nil)
-    %w[author_id category created_at description dt id position published summary title updated_at]
-  end
+  class << self
+    def ransackable_attributes(auth_object = nil)
+      %w[author_id category created_at description dt id position published summary title updated_at]
+    end
 
-  def self.ransackable_associations(auth_object = nil)
-    %w[author author_profile images_attachments images_blobs post_tags tags]
+    def ransackable_associations(auth_object = nil)
+      %w[author author_profile images_attachments images_blobs post_tags tags]
+    end
   end
 end
diff --git a/spec/dummy/app/models/post_tag.rb b/spec/dummy/app/models/post_tag.rb
index ce79a9f..fd32b91 100644
--- a/spec/dummy/app/models/post_tag.rb
+++ b/spec/dummy/app/models/post_tag.rb
@@ -7,7 +7,9 @@ class PostTag < ApplicationRecord
   validates :post, presence: true
   validates :tag,  presence: true
 
-  def self.ransackable_attributes(auth_object = nil)
-    %w[created_at id post_id tag_id updated_at]
+  class << self
+    def ransackable_attributes(auth_object = nil)
+      %w[created_at id post_id tag_id updated_at]
+    end
   end
 end
diff --git a/spec/dummy/app/models/profile.rb b/spec/dummy/app/models/profile.rb
index beac97a..d6f373d 100644
--- a/spec/dummy/app/models/profile.rb
+++ b/spec/dummy/app/models/profile.rb
@@ -3,11 +3,19 @@
 class Profile < ApplicationRecord
   belongs_to :author, inverse_of: :profile, touch: true
 
-  def to_s
-    description
-  end
+  # has_rich_text :description
 
-  def self.ransackable_attributes(auth_object = nil)
-    %w[author_id created_at description id updated_at]
+  # def to_s
+  #   description
+  # end
+
+  class << self
+    def ransackable_associations(auth_object = nil)
+      %w[author]
+    end
+
+    def ransackable_attributes(_auth_object = nil)
+      %w[author_id created_at description id updated_at]
+    end
   end
 end
diff --git a/spec/dummy/app/models/tag.rb b/spec/dummy/app/models/tag.rb
index 50a59bc..deb2372 100644
--- a/spec/dummy/app/models/tag.rb
+++ b/spec/dummy/app/models/tag.rb
@@ -3,4 +3,14 @@
 class Tag < ApplicationRecord
   has_many :post_tags, inverse_of: :tag, dependent: :destroy
   has_many :posts, through: :post_tags
+
+  class << self
+    def ransackable_associations(auth_object = nil)
+      %w[post_tags posts]
+    end
+
+    def ransackable_attributes(auth_object = nil)
+      %w[created_at id id_value name updated_at]
+    end
+  end
 end
diff --git a/spec/dummy/config/application.rb b/spec/dummy/config/application.rb
index 2f575f3..7107cdb 100644
--- a/spec/dummy/config/application.rb
+++ b/spec/dummy/config/application.rb
@@ -17,6 +17,10 @@ module Dummy
 
     ###
 
-    config.active_record.legacy_connection_handling = false if Rails::VERSION::MAJOR > 6
+    config.active_record.legacy_connection_handling = false if Gem::Version.new(Rails.version) < Gem::Version.new('7.1')
+
+    config.before_configuration do
+      ActiveSupport::Cache.format_version = 7.0 if Gem::Version.new(Rails.version) > Gem::Version.new('7.0')
+    end
   end
 end
diff --git a/spec/dummy/config/environments/development.rb b/spec/dummy/config/environments/development.rb
index 7a352dd..442b7fb 100644
--- a/spec/dummy/config/environments/development.rb
+++ b/spec/dummy/config/environments/development.rb
@@ -29,7 +29,7 @@ Rails.application.configure do
   end
 
   # Store uploaded files on the local file system (see config/storage.yml for options).
-  config.active_storage.service = :local
+  # config.active_storage.service = :local
 
   # # Don't care if the mailer can't send.
   # config.action_mailer.raise_delivery_errors = false
diff --git a/spec/dummy/config/environments/test.rb b/spec/dummy/config/environments/test.rb
index 270398b..8f83af4 100644
--- a/spec/dummy/config/environments/test.rb
+++ b/spec/dummy/config/environments/test.rb
@@ -26,7 +26,7 @@ Rails.application.configure do
   config.cache_store = :null_store
 
   # Raise exceptions instead of rendering exception templates.
-  config.action_dispatch.show_exceptions = false
+  config.action_dispatch.show_exceptions = :none
 
   # Disable request forgery protection in test environment.
   config.action_controller.allow_forgery_protection = false
diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index 584edee..c1fbecb 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -15,7 +15,7 @@ require 'rspec/retry'
 Dir[File.expand_path('support/**/*.rb', __dir__)].each { |f| require f }
 
 # Force deprecations to raise an exception.
-ActiveSupport::Deprecation.behavior = :raise
+# ActiveSupport::Deprecation.behavior = :raise
 
 # Checks for pending migrations and applies them before tests are run.
 # If you are not using ActiveRecord, you can remove these lines.
@@ -27,7 +27,6 @@ rescue ActiveRecord::PendingMigrationError => e
 end
 
 RSpec.configure do |config|
-  config.fixture_path = Rails.root.join('spec/fixtures').to_s
   config.infer_spec_type_from_file_location!
   config.filter_rails_from_backtrace!