diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..97142dd
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,27 @@
+name: Ruby
+
+on:
+  push:
+    branches:
+      - master
+
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        ruby:
+          - 3.0.2
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+        bundler-cache: true
+    - name: Run the default task
+      run: bundle exec rake
diff --git a/.github/workflows/run_rubocop.yml b/.github/workflows/run_rubocop.yml
deleted file mode 100644
index 07e7b5c..0000000
--- a/.github/workflows/run_rubocop.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-name: Rubocop Lint
-
-on: [push, pull_request]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up Ruby 2.6 is
-      uses: actions/setup-ruby@v1
-      with:
-        ruby-version: 2.6.x
-    - uses: actions/cache@v1
-      with:
-        path: vendor/bundle
-        key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile.lock') }}
-        restore-keys: |
-          ${{ runner.os }}-gems-
-    - name: Run Rubocop linter
-      run: |
-        gem install bundler
-        bundle config path vendor/bundle
-        bundle install --jobs 4 --retry 3
-        bundle exec rubocop
diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
deleted file mode 100644
index 93fb4ba..0000000
--- a/.github/workflows/run_tests.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-name: Tests 🧪
-
-on: [push, pull_request]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up Ruby 2.6 is
-      uses: actions/setup-ruby@v1
-      with:
-        ruby-version: 2.6.x
-    - uses: actions/cache@v1
-      with:
-        path: vendor/bundle
-        key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile.lock') }}
-        restore-keys: |
-          ${{ runner.os }}-gems-
-    - name: Run test suite
-      run: |
-        gem install bundler
-        bundle config path vendor/bundle
-        bundle install --jobs 4 --retry 3
-        bundle exec rake test
diff --git a/.rubocop.yml b/.rubocop.yml
index b88dbc6..df647b9 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -10,7 +10,6 @@ Layout/LineLength:
   Max: 120
 
 AllCops:
-  NewCops: enable
   TargetRubyVersion: 2.6
   Exclude:
     - 'vendor/**/*'
diff --git a/README.md b/README.md
index 71103c4..ae34c82 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,6 @@
 # Chatworkify
 
-![Gem](https://img.shields.io/gem/v/chatworkify?color=%234cc61f&label=Gem%20version&logo=ruby&logoColor=red)
-![Gem](https://img.shields.io/gem/dt/chatworkify?color=%2330c754&label=Downloads&logo=rubygems&logoColor=red)
-![GitHub Workflow Status](https://img.shields.io/github/workflow/status/rs-phunt/chatworkify/Tests%20%F0%9F%A7%AA?label=Tests&logo=github)
-![GitHub Workflow Status](https://img.shields.io/github/workflow/status/rs-phunt/chatworkify/Rubocop%20Lint?label=Rubocop&logo=github)
+[![Gem Version](https://badge.fury.io/rb/chatworkify.svg)](https://badge.fury.io/rb/chatworkify)
 
 ## Installation
 
@@ -33,7 +30,7 @@ Require the gem in your `Capfile`:
 
 - Export to your `bash`: `export CHATWORK_API_TOKEN=xxx`
 
-- Add to `.env` if you're using `dotenv` gem
+- Add to `.env` if you're using `config` gem
 
 
 ### Puts `CHATWORK_ROOM_ID` into your ENV or custom in `config/deploy`
diff --git a/chatworkify.gemspec b/chatworkify.gemspec
index 41c070e..abbeb8e 100644
--- a/chatworkify.gemspec
+++ b/chatworkify.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.required_ruby_version = '>= 2.6'
 
   # spec.metadata['allowed_push_host'] = 'TODO: Set to your gem server 'https://example.com''
-  spec.metadata['rubygems_mfa_required'] = 'true'
+
   spec.metadata['homepage_uri'] = spec.homepage
   spec.metadata['source_code_uri'] = 'https://github.com/rs-phunt/chatworkify'
   spec.metadata['changelog_uri'] = 'https://github.com/rs-phunt/chatworkify/blob/master/CHANGELOG.md'