diff --git a/Rakefile b/Rakefile
index 7398a90..e318f19 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,3 +1,13 @@
 # frozen_string_literal: true
 
 require 'bundler/gem_tasks'
+
+begin
+  require 'rspec/core/rake_task'
+
+  RSpec::Core::RakeTask.new(:spec)
+
+  task default: :spec
+rescue LoadError
+  puts '! LoadError: no RSpec available'
+end
diff --git a/spec/dummy/app/admin/authors.rb b/spec/dummy/app/admin/authors.rb
index 1839574..2af9bce 100644
--- a/spec/dummy/app/admin/authors.rb
+++ b/spec/dummy/app/admin/authors.rb
@@ -1,9 +1,12 @@
 # frozen_string_literal: true
 
 ActiveAdmin.register Author do
-  menu priority: 1
-
-  permit_params :name, :email, :age, :avatar, profile_attributes: %i[id description _destroy]
+  permit_params :name,
+                :email,
+                :age,
+                :avatar,
+                profile_attributes: %i[id description _destroy],
+                posts_attributes: %i[id title description]
 
   index do
     selectable_column
@@ -28,6 +31,7 @@ ActiveAdmin.register Author do
       row :created_at
       row :updated_at
       row :profile
+      row :posts
     end
     active_admin_comments
   end
@@ -44,6 +48,10 @@ ActiveAdmin.register Author do
     f.has_many :profile, allow_destroy: true do |ff|
       ff.input :description
     end
+    f.has_many :posts do |fp|
+      fp.input :title
+      fp.input :description, as: :quill_editor
+    end
     f.actions
   end
 end
diff --git a/spec/dummy/app/admin/posts.rb b/spec/dummy/app/admin/posts.rb
index 6f55d22..9d1cb11 100644
--- a/spec/dummy/app/admin/posts.rb
+++ b/spec/dummy/app/admin/posts.rb
@@ -25,6 +25,14 @@ ActiveAdmin.register Post do
       row :tags
       row :created_at
       row :updated_at
+      row :images do |resurce|
+        resurce.images.each do |image|
+          div do
+            link_to image.filename, image, target: '_blank'
+          end
+        end
+        nil
+      end
     end
     active_admin_comments
   end
diff --git a/spec/dummy/app/models/author.rb b/spec/dummy/app/models/author.rb
index 9f26d99..9ac73cd 100644
--- a/spec/dummy/app/models/author.rb
+++ b/spec/dummy/app/models/author.rb
@@ -12,6 +12,7 @@ class Author < ApplicationRecord
   has_one_attached :avatar
 
   accepts_nested_attributes_for :profile, allow_destroy: true
+  accepts_nested_attributes_for :posts, allow_destroy: true
 
   validates :email, format: { with: /\A[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,}\z/i, message: 'Invalid email' }
 
diff --git a/spec/dummy/app/models/post.rb b/spec/dummy/app/models/post.rb
index c285325..f80363f 100644
--- a/spec/dummy/app/models/post.rb
+++ b/spec/dummy/app/models/post.rb
@@ -10,6 +10,10 @@ class Post < ApplicationRecord
   has_many :post_tags, inverse_of: :post, dependent: :destroy
   has_many :tags, through: :post_tags
 
+  has_many_attached :images
+
+  accepts_nested_attributes_for :post_tags, allow_destroy: true
+
   validates :title, allow_blank: false, presence: true
 
   scope :published, -> { where(published: true) }
diff --git a/spec/system/quill_editor_spec.rb b/spec/system/quill_editor_spec.rb
index 7a338a6..6de97cb 100644
--- a/spec/system/quill_editor_spec.rb
+++ b/spec/system/quill_editor_spec.rb
@@ -9,7 +9,7 @@ RSpec.describe 'Quill editor', type: :system do
   end
 
   after do
-    post.destroy
+    Post.destroy_all
     author.destroy
   end
 
@@ -18,6 +18,7 @@ RSpec.describe 'Quill editor', type: :system do
       visit "/admin/posts/#{post.id}/edit"
 
       expect(page).to have_css('#post_description_input .ql-editor', text: 'Some content...')
+      find('#post_description_input .ql-editor').click
       find('#post_description_input .ql-editor').base.send_keys('more text')
 
       find('[type="submit"]').click
@@ -25,4 +26,21 @@ RSpec.describe 'Quill editor', type: :system do
       expect(post.reload.description).to eq '<p>Some content...more text</p>'
     end
   end
+
+  context 'with a Quill editor in a nested resource' do
+    it 'updates some HTML content of a new nested resource' do
+      visit "/admin/authors/#{author.id}/edit"
+
+      expect(page).to have_css('.posts.has_many_container .ql-editor', text: 'Some content...')
+      find('.posts.has_many_container .has_many_add').click
+      expect(page).to have_css('.posts.has_many_container .ql-editor', count: 2)
+
+      fill_in('author[posts_attributes][1][title]', with: 'A new post')
+      find('#author_posts_attributes_1_description_input .ql-editor').base.send_keys('new post text')
+      find('[type="submit"]').click
+
+      expect(page).to have_content('was successfully updated')
+      expect(author.posts.last.description).to eq '<p>new post text</p>'
+    end
+  end
 end