diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
new file mode 100644
index 0000000..ee7c097
--- /dev/null
+++ b/.github/workflows/ruby.yml
@@ -0,0 +1,29 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will download a prebuilt Ruby version, install dependencies and run tests with Rake
+# For more information see: https://github.com/marketplace/actions/setup-ruby-jruby-and-truffleruby
+
+name: Ruby
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby-version: ['3.0', '3.1']
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby-version }}
+          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+      - run: bundle exec rake
\ No newline at end of file
diff --git a/Gemfile b/Gemfile
index 3c79748..f81f2d6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,8 +8,8 @@ group :test do
   gem 'coffee-rails'
   gem 'sass-rails', '~> 6.0.0'
   gem 'money', '6.13'
-  gem 'rspec-rails', '~> 2.10'
-  gem 'shoulda-matchers', '2.2.0'
+  gem 'rspec-rails', '~> 5.1.0'
+  gem 'shoulda-matchers', '5.1.0'
   gem 'simplecov', :require => false
   gem 'simplecov-rcov'
   gem 'database_cleaner'
diff --git a/Versionfile b/Versionfile
deleted file mode 100644
index cc427b4..0000000
--- a/Versionfile
+++ /dev/null
@@ -1,5 +0,0 @@
-# This file is used to designate compatibilty with different versions of Spree
-# Please see http://spreecommerce.com/documentation/extensions.html#versionfile for details
-
-"2.2.x" => { :branch => "master" }
-"2.0.x" => { :branch => "2-0-stable" }
diff --git a/spree_affirm.gemspec b/spree_affirm.gemspec
index a8ddb50..8339b59 100644
--- a/spree_affirm.gemspec
+++ b/spree_affirm.gemspec
@@ -8,15 +8,14 @@ Gem::Specification.new do |s|
   s.version     = SpreeAffirm::VERSION
   s.summary     = 'Affirm Spree Payment Gateway'
   s.description = 'Affirm payment Gateway for Spree'
-  s.required_ruby_version = '>= 1.9.3'
+  s.required_ruby_version = '>= 3.0.3'
 
   s.author    = 'Affirm'
   s.email     = 'mts@affirm.com'
   s.homepage  = 'http://www.affirm.com'
 
-  s.files       = `git ls-files`.split("\n")
-  s.test_files  = `git ls-files -- {test,spec,features}/*`.split("\n")
-  s.require_path = 'lib'
+  s.files       = Dir['README.md', 'lib/**/*', 'spree_affirm.gemspec']
+  s.require_paths = ['lib']
   s.requirements << 'none'
 
   s.add_dependency 'spree_core', '>= 4.4.0'