diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index b2db890..0000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,94 +0,0 @@
-version: 2.1
-
-executors:
-  ruby:
-    parameters:
-      version:
-        description: "Ruby version number"
-        default: "3.3"
-        type: string
-    docker:
-      - image: ruby:<< parameters.version >>
-        environment:
-          MT_COMPAT: "1" # Allows old versions of mocha gem to work with minitest
-
-commands:
-  bundle_install:
-    description: Install Ruby dependencies with Bundler
-    parameters:
-      key:
-        description: "Cache key"
-        default: "3.3"
-        type: string
-    steps:
-      - restore_cache:
-          keys:
-            - bundle-v1-{{ arch }}-<< parameters.key >>
-      - run:
-          name: Install Ruby Dependencies
-          command: |
-            gem install bundler --conservative --no-document || \
-              gem install rubygems-update -v '<3' && update_rubygems && gem install bundler -v '<2' --no-document
-            bundle config --local path vendor/bundle
-            bundle check || (bundle install --jobs=4 --retry=3 && bundle clean)
-      - save_cache:
-          paths:
-            - ./vendor/bundle
-          key: bundle-v1-{{ arch }}-<< parameters.key >>-{{ checksum "Gemfile.lock" }}
-
-jobs:
-  rubocop:
-    executor:
-      name: ruby
-      version: "2.7"
-    steps:
-      - checkout
-      - bundle_install:
-          key: "2.7"
-      - run: bundle exec rubocop
-  spec:
-    parameters:
-      ruby:
-        description: "Ruby version number"
-        default: "3.3"
-        type: string
-    executor:
-      name: ruby
-      version: << parameters.ruby >>
-    steps:
-      - checkout
-      - run: echo sshkit=master >> $BASH_ENV
-      - bundle_install:
-          key: << parameters.ruby >>
-      - run: bundle exec rake test
-
-workflows:
-  version: 2
-  commit-workflow:
-    jobs:
-      - rubocop
-      - spec:
-          matrix: &matrix
-            parameters:
-              ruby:
-                - "2.4"
-                - "2.5"
-                - "2.6"
-                - "2.7"
-                - "3.0"
-                - "3.1"
-                - "3.2"
-                - "3.3"
-  cron-workflow:
-    jobs:
-      - rubocop
-      - spec:
-          matrix:
-            <<: *matrix
-    triggers:
-      - schedule:
-          cron: "0 13 * * 6"
-          filters:
-            branches:
-              only:
-                - main
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ebe4a31..3f80191 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,7 +5,32 @@ on:
     branches:
       - main
 jobs:
-  spec_legacy_ruby_19:
+  rubocop:
+    name: "RuboCop"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: "2.7"
+          bundler-cache: true
+      - run: bundle exec rubocop
+  test:
+    name: "Test / Ruby ${{ matrix.ruby }}"
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby: ["2.4", "2.5", "2.6", "2.7", "3.0", "3.1", "3.2", "3.3"]
+    env:
+      sshkit: "master"
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - run: bundle exec rake test
+  test_legacy_ruby_19:
     name: "Test / Ruby 1.9 / SSHKit ${{ matrix.sshkit }}"
     runs-on: ubuntu-20.04
     strategy:
@@ -23,7 +48,7 @@ jobs:
           bundler: "1.17.3"
           bundler-cache: true
       - run: bundle exec rake test
-  spec_legacy_ruby:
+  test_legacy_ruby:
     name: "Test / Ruby ${{ matrix.ruby }} / SSHKit ${{ matrix.sshkit }}"
     runs-on: ubuntu-20.04
     strategy:
@@ -43,7 +68,7 @@ jobs:
   spec_all:
     name: "Test / Ruby (All)"
     runs-on: ubuntu-latest
-    needs: [spec_legacy_ruby, spec_legacy_ruby_19]
+    needs: [test, test_legacy_ruby, test_legacy_ruby_19]
     if: always()
     steps:
       - name: All tests ok
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 107834d..1190dfe 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -19,7 +19,7 @@ Note that Bundler 1.10 is required for development. Run `gem update bundler` to
 
 After checking out the airbrussh repo, run `bin/setup` to install dependencies. Run `rake` to execute airbrussh's tests and RuboCop checks.
 
-Airbrussh is designed to work against multiple versions of SSHKit and Ruby. In order to test this, we use the environment variable `sshkit` in order to run the tests against a specific version. The combinations of sshkit and ruby we support are specified in [.circleci/config.yml](.circleci/config.yml).
+Airbrussh is designed to work against multiple versions of SSHKit and Ruby. In order to test this, we use the environment variable `sshkit` in order to run the tests against a specific version. The combinations of sshkit and ruby we support are specified in [.github/workflows/ci.yml](.github/workflows/ci.yml).
 
 A Guardfile is also present, so if you'd like to use Guard to do a TDD workflow, then:
 
diff --git a/README.md b/README.md
index b115e87..7833504 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Airbrussh
 
 [![Gem Version](https://badge.fury.io/rb/airbrussh.svg)](http://badge.fury.io/rb/airbrussh)
-[![Build Status](https://circleci.com/gh/mattbrictson/airbrussh/tree/main.svg?style=shield)](https://app.circleci.com/pipelines/github/mattbrictson/airbrussh?branch=main)
+[![Build Status](https://github.com/mattbrictson/airbrussh/actions/workflows/ci.yml/badge.svg)](https://github.com/mattbrictson/airbrussh/actions/workflows/ci.yml)
 [![Build status](https://ci.appveyor.com/api/projects/status/h052rlq54sne3md6/branch/main?svg=true)](https://ci.appveyor.com/project/mattbrictson/airbrussh/branch/main)
 [![Code Climate](https://codeclimate.com/github/mattbrictson/airbrussh/badges/gpa.svg)](https://codeclimate.com/github/mattbrictson/airbrussh)
 [![Coverage Status](https://coveralls.io/repos/mattbrictson/airbrussh/badge.svg?branch=main)](https://coveralls.io/r/mattbrictson/airbrussh?branch=main)