diff --git a/.circleci/config.yml b/.circleci/config.yml
new file mode 100644
index 0000000..5bbc07b
--- /dev/null
+++ b/.circleci/config.yml
@@ -0,0 +1,71 @@
+version: 2.1
+
+jobs:
+  test:
+    docker:
+      - image: cimg/ruby:2.7.4
+        auth:
+          username: $DOCKERHUB_USERNAME
+          password: $DOCKERHUB_TOKEN
+    steps:
+      - checkout
+      - run:
+          name: Install Ruby gems
+          command: bundle check --path=vendor/bundle || bundle install --path=vendor/bundle --jobs=4 --retry=3
+      - run:
+          name: Set up test output directory
+          command: sudo install -o circleci -d ~/rspec
+      - run:
+          name: RSpec
+          command: |
+            bundle exec rspec \
+              --color \
+              --require spec_helper \
+              --format documentation \
+              --format RspecJunitFormatter \
+              --out ~/rspec/rspec.xml
+  push_to_rubygems:
+    docker:
+      - image: circleci/ruby:2.7.4
+        auth:
+          username: $DOCKERHUB_USERNAME
+          password: $DOCKERHUB_TOKEN
+    steps:
+      - checkout
+      - run:
+          name: Create .gem/credentials file
+          command: |
+            mkdir ~/.gem
+            echo "---
+              :rubygems_api_key: $RUBYGEMS_API_KEY
+            " > ~/.gem/credentials
+            chmod 600 ~/.gem/credentials
+      - run:
+          name: Release
+          command: |
+            gem build http-exceptions
+            gem push http-exceptions*.gem
+
+workflows:
+  version: 2
+  test_and_deploy:
+    jobs:
+      - test:
+          filters:
+            tags:
+              only:
+                - /^v.*/
+          context:
+            - DockerHub
+      - push_to_rubygems:
+          requires:
+            - test
+          filters:
+            branches:
+              ignore:
+                - /.*/
+            tags:
+              only:
+                - /^v.*/
+          context:
+            - DockerHub
diff --git a/.ruby-gemset b/.ruby-gemset
deleted file mode 100644
index a9baf89..0000000
--- a/.ruby-gemset
+++ /dev/null
@@ -1 +0,0 @@
-http-exceptions
diff --git a/.ruby-version b/.ruby-version
index 76521af..30c5992 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-ruby-2.2.0
+ruby-2.7.4
diff --git a/.travis.yml b/.travis.yml
index c81ee8d..68f29ca 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ rvm:
   - 2.1.8
   - 2.2.4
   - 2.3.0
+  - 2.7.4
   - ruby-head
 script: bundle exec rspec spec
 matrix:
diff --git a/http-exceptions.gemspec b/http-exceptions.gemspec
index 44f75d3..6edbdd9 100644
--- a/http-exceptions.gemspec
+++ b/http-exceptions.gemspec
@@ -18,6 +18,8 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "bundler", "~> 1.6"
+  spec.add_development_dependency "bundler", "~> 2.2"
   spec.add_development_dependency "rake"
+  spec.add_development_dependency "rspec"
+  spec.add_development_dependency 'rspec_junit_formatter'
 end