diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index d766f6a..0000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,33 +0,0 @@
-version: 2.1
-orbs:
-  ruby: circleci/ruby@0.1.2 
-
-jobs:
-  build:
-    docker:
-      - image: circleci/ruby:2.6.6-stretch-node-browsers
-    executor: ruby/default
-    steps:
-      - checkout
-      - restore_cache:
-          key: gem-cache-{{ checksum "activeadmin_quill_editor.gemspec" }}
-      - run:
-          name: Setup Bundler
-          command: gem install bundler
-      - run:
-          name: Bundle Install
-          command: bundle install --path vendor/bundle
-      - save_cache:
-          key: gem-cache-{{ checksum "activeadmin_quill_editor.gemspec" }}
-          paths: vendor/bundle
-      - run:
-          name: Run Specs
-          command: |
-            bin/rspec \
-              --profile 10 \
-              --format RspecJunitFormatter \
-              --out test_results/rspec.xml \
-              --format progress \
-              $(circleci tests glob "spec/**/*_spec.rb")
-      - store_test_results:
-          path: test_results
diff --git a/.github/workflows/brakeman-analysis.yml b/.github/workflows/brakeman-analysis.yml
deleted file mode 100644
index 4b8f33e..0000000
--- a/.github/workflows/brakeman-analysis.yml
+++ /dev/null
@@ -1,44 +0,0 @@
-# This workflow integrates Brakeman with GitHub's Code Scanning feature
-# Brakeman is a static analysis security vulnerability scanner for Ruby on Rails applications
-
-name: Brakeman Scan
-
-# This section configures the trigger for the workflow. Feel free to customize depending on your convention
-on:
-  push:
-    branches: [ "master", "main" ]
-  pull_request:
-    branches: [ "master", "main" ]
-
-jobs:
-  brakeman-scan:
-    name: Brakeman Scan
-    runs-on: ubuntu-latest
-    steps:
-    # Checkout the repository to the GitHub Actions runner
-    - name: Checkout
-      uses: actions/checkout@v2
-
-    # Customize the ruby version depending on your needs
-    - name: Setup Ruby
-      uses: actions/setup-ruby@v1
-      with:
-        ruby-version: '2.7'
-
-    - name: Setup Brakeman
-      env:
-        BRAKEMAN_VERSION: '4.10' # SARIF support is provided in Brakeman version 4.10+
-      run: |
-        gem install brakeman --version $BRAKEMAN_VERSION
-
-    # Execute Brakeman CLI and generate a SARIF output with the security issues identified during the analysis
-    - name: Scan
-      continue-on-error: true
-      run: |
-        brakeman -f sarif -o output.sarif.json .
-
-    # Upload the SARIF file generated in the previous step
-    - name: Upload SARIF
-      uses: github/codeql-action/upload-sarif@v1
-      with:
-        sarif_file: output.sarif.json
diff --git a/.github/workflows/specs.yml b/.github/workflows/specs.yml
new file mode 100644
index 0000000..2eab4dc
--- /dev/null
+++ b/.github/workflows/specs.yml
@@ -0,0 +1,26 @@
+name: Specs
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  specs:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        ruby: ['2.5', '2.6', '2.7']
+
+    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
+      - name: Run tests
+        run: bundle exec rake
diff --git a/README.md b/README.md
index 19d1ac3..f26af6e 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,11 @@
-# ActiveAdmin Quill Editor [![Gem Version](https://badge.fury.io/rb/activeadmin_quill_editor.svg)](https://badge.fury.io/rb/activeadmin_quill_editor) [![CircleCI](https://circleci.com/gh/blocknotes/activeadmin_quill_editor.svg?style=svg)](https://circleci.com/gh/blocknotes/activeadmin_quill_editor)
+# ActiveAdmin Quill Editor [![Gem Version](https://badge.fury.io/rb/activeadmin_quill_editor.svg)](https://badge.fury.io/rb/activeadmin_quill_editor) [![Specs](https://github.com/blocknotes/activeadmin_quill_editor/actions/workflows/specs.yml/badge.svg)](https://github.com/blocknotes/activeadmin_quill_editor/actions/workflows/specs.yml)
 
 An Active Admin plugin to use [Quill Rich Text Editor](https://github.com/quilljs/quill) in form fields.
 
 ![screenshot](screenshot.png)
 
 ## Install
+
 After installing Active Admin, add to your Gemfile: `gem 'activeadmin_quill_editor'` (and execute *bundle*)
 
 If you installed Active Admin without Webpacker support (default for now):
@@ -34,6 +35,7 @@ require('activeadmin_quill_editor')
 ```
 
 ## Usage
+
 In your Active Admin models, form configuration, set the text inputs with `as: :quill_editor` where needed.
 
 **data-options**: permits to set *quill editor* options directly - see [options list](https://quilljs.com/docs/configuration/)
@@ -61,6 +63,7 @@ f.input :description, as: :quill_editor, input_html: { data: { options: { module
 ```
 
 ### ImageUploader plugin
+
 This plugin allows to upload images to the server (instead of storing them in *base64* by default), reference [here](https://github.com/NoelOConnell/quill-image-uploader).
 
 ```ruby
@@ -87,13 +90,16 @@ the *upload_admin_post_path*) and it doesn't provide a way to remove images (jus
 the editor will not destroy them, you'll need to implement a purge logic for that).
 
 ## Do you like it? Star it!
+
 If you use this component just star it. A developer is more motivated to improve a project when there is some interest. My other [Active Admin components](https://github.com/blocknotes?utf8=✓&tab=repositories&q=activeadmin&type=source).
 
 Or consider offering me a coffee, it's a small thing but it is greatly appreciated: [about me](https://www.blocknot.es/about-me).
 
 ## Contributors
+
 - [Mattia Roccoberton](http://blocknot.es): author
 - The good guys that opened issues and pull requests from time to time
 
 ## License
+
 The gem is available as open-source under the terms of the [MIT](LICENSE.txt).