diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..d2f0943e
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,127 @@
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby:
+          - 2.2
+          - 2.3
+          - 2.4
+          - 2.5
+          - 2.6
+          - 2.7
+          # - ruby-head
+          # - truffleruby-head
+        gemfile:
+          # These are located in the gemfiles/ folder
+          - rails42
+          - rails50
+          - rails51
+          - rails52
+          - rails60
+          - rails42_haml
+          - rails50_haml
+          - rails51_haml
+          - rails52_haml
+          - rails60_haml
+          - rails42_boc
+          - rails50_boc
+          - rails51_boc
+          - rails52_boc
+          - rails60_boc
+          - rack
+          - rack_boc
+          # - pry09
+          # - pry10
+          # - pry11
+        exclude:
+          - { ruby: 2.2,              gemfile: rails60 }
+          - { ruby: 2.2,              gemfile: rails60_boc }
+          - { ruby: 2.2,              gemfile: rails60_haml }
+          - { ruby: 2.3,              gemfile: rails42 }
+          - { ruby: 2.3,              gemfile: rails42_boc }
+          - { ruby: 2.3,              gemfile: rails42_haml }
+          - { ruby: 2.3,              gemfile: rails60 }
+          - { ruby: 2.3,              gemfile: rails60_boc }
+          - { ruby: 2.3,              gemfile: rails60_haml }
+          - { ruby: 2.4,              gemfile: rails42 }
+          - { ruby: 2.4,              gemfile: rails42_boc }
+          - { ruby: 2.4,              gemfile: rails42_haml }
+          - { ruby: 2.4,              gemfile: rails60 }
+          - { ruby: 2.4,              gemfile: rails60_boc }
+          - { ruby: 2.4,              gemfile: rails60_haml }
+          - { ruby: 2.5,              gemfile: rails42 }
+          - { ruby: 2.5,              gemfile: rails42_boc }
+          - { ruby: 2.5,              gemfile: rails42_haml }
+          - { ruby: 2.6,              gemfile: rails42 }
+          - { ruby: 2.6,              gemfile: rails42_boc }
+          - { ruby: 2.6,              gemfile: rails42_haml }
+          - { ruby: 2.7,              gemfile: rails42 }
+          - { ruby: 2.7,              gemfile: rails42_boc }
+          - { ruby: 2.7,              gemfile: rails42_haml }
+          # - { ruby: ruby-head,        gemfile: rails42 }
+          # - { ruby: ruby-head,        gemfile: rails42_boc }
+          # - { ruby: ruby-head,        gemfile: rails42_haml }
+          - { ruby: truffleruby-head, gemfile: rails42_boc }
+          - { ruby: truffleruby-head, gemfile: rails50_boc }
+          - { ruby: truffleruby-head, gemfile: rails51_boc }
+          - { ruby: truffleruby-head, gemfile: rails52_boc }
+          - { ruby: truffleruby-head, gemfile: rails60_boc }
+          - { ruby: truffleruby-head, gemfile: rack_boc }
+
+    steps:
+
+    - uses: actions/checkout@v2
+
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+
+    - uses: actions/cache@v2
+      with:
+        path: gemfiles/vendor/bundle
+        key: v3-${{ runner.os }}-branch-${{ github.ref }}-ruby-${{ matrix.ruby }}-gemfile-${{ matrix.gemfile }}-${{ hashFiles(format('gemfiles/{0}.gemfile', matrix.gemfile)) }}
+        restore-keys: |
+          v3-${{ runner.os }}-branch-${{ github.ref }}-ruby-${{ matrix.ruby }}-gemfile-${{ matrix.gemfile }}
+          v3-${{ runner.os }}-branch-master-ruby-${{ matrix.ruby }}-gemfile-${{ matrix.gemfile }}
+
+    - name: Bundle install
+      run: |
+        bundle config path vendor/bundle
+        bundle install --jobs 4 --retry 3
+      env:
+        BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}.gemfile
+
+    - name: RSpec
+      run: bundle exec rspec -f doc --color
+      env:
+        BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}.gemfile
+
+    - name: Report to Coveralls
+      uses: coverallsapp/github-action@v1.1.2
+      with:
+        github-token: ${{ secrets.github_token }}
+        flag-name: test-${{ matrix.ruby }}-${{ matrix.gemfile }}
+        parallel: true
+
+
+  finish:
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Report completion to Coveralls
+      uses: coverallsapp/github-action@v1.1.2
+      with:
+        github-token: ${{ secrets.github_token }}
+        parallel-finished: true
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 0193b6d9..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,111 +0,0 @@
-language: ruby
-cache: bundler
-notifications:
-  webhooks:
-    # With COVERALLS_PARALLEL, coverage information sent to coveralls will not be processed until
-    # this webhook is sent.
-    # https://coveralls.zendesk.com/hc/en-us/articles/203484329-Parallel-Build-Webhook
-    - secure: "YnHYbTq51ySistjvOxsuNhyg4GLuUffEJstTYeGYXiBF7HG5h43IVYo8KNuLzwkgsOYBcNo+YMdQX7qCqJffSbhsr1FZRSzBmjFFxcyD4hu+ukM2theZ4mePVAZiePscYvQPRNY4hIb4d3egStJEytkalDhB3sOebF57tIaCssg="
-rvm:
-  - 2.2.10
-  - 2.3.8
-  - 2.4.9
-  - 2.5.7
-  - 2.6.5
-  - 2.7.0
-  - ruby-head
-  - truffleruby-head
-gemfile:
-  - gemfiles/rails42.gemfile
-  - gemfiles/rails50.gemfile
-  - gemfiles/rails51.gemfile
-  - gemfiles/rails52.gemfile
-  - gemfiles/rails60.gemfile
-  - gemfiles/rails42_haml.gemfile
-  - gemfiles/rails50_haml.gemfile
-  - gemfiles/rails51_haml.gemfile
-  - gemfiles/rails52_haml.gemfile
-  - gemfiles/rails60_haml.gemfile
-  - gemfiles/rails42_boc.gemfile
-  - gemfiles/rails50_boc.gemfile
-  - gemfiles/rails51_boc.gemfile
-  - gemfiles/rails52_boc.gemfile
-  - gemfiles/rails60_boc.gemfile
-  - gemfiles/rack.gemfile
-  - gemfiles/rack_boc.gemfile
-  - gemfiles/pry09.gemfile
-  - gemfiles/pry010.gemfile
-  - gemfiles/pry011.gemfile
-matrix:
-  fast_finish: true
-  allow_failures:
-    - rvm: ruby-head
-    - gemfile: gemfiles/pry010.gemfile
-    - gemfile: gemfiles/pry011.gemfile
-  exclude:
-    - rvm: 2.2.10
-      gemfile: gemfiles/rails60.gemfile
-    - rvm: 2.2.10
-      gemfile: gemfiles/rails60_boc.gemfile
-    - rvm: 2.2.10
-      gemfile: gemfiles/rails60_haml.gemfile
-    - rvm: 2.3.8
-      gemfile: gemfiles/rails42.gemfile
-    - rvm: 2.3.8
-      gemfile: gemfiles/rails42_boc.gemfile
-    - rvm: 2.3.8
-      gemfile: gemfiles/rails42_haml.gemfile
-    - rvm: 2.3.8
-      gemfile: gemfiles/rails60.gemfile
-    - rvm: 2.3.8
-      gemfile: gemfiles/rails60_boc.gemfile
-    - rvm: 2.3.8
-      gemfile: gemfiles/rails60_haml.gemfile
-    - rvm: 2.4.9
-      gemfile: gemfiles/rails42.gemfile
-    - rvm: 2.4.9
-      gemfile: gemfiles/rails42_boc.gemfile
-    - rvm: 2.4.9
-      gemfile: gemfiles/rails42_haml.gemfile
-    - rvm: 2.4.9
-      gemfile: gemfiles/rails60.gemfile
-    - rvm: 2.4.9
-      gemfile: gemfiles/rails60_boc.gemfile
-    - rvm: 2.4.9
-      gemfile: gemfiles/rails60_haml.gemfile
-    - rvm: 2.5.7
-      gemfile: gemfiles/rails42.gemfile
-    - rvm: 2.5.7
-      gemfile: gemfiles/rails42_boc.gemfile
-    - rvm: 2.5.7
-      gemfile: gemfiles/rails42_haml.gemfile
-    - rvm: 2.6.5
-      gemfile: gemfiles/rails42.gemfile
-    - rvm: 2.6.5
-      gemfile: gemfiles/rails42_boc.gemfile
-    - rvm: 2.6.5
-      gemfile: gemfiles/rails42_haml.gemfile
-    - rvm: 2.7.0
-      gemfile: gemfiles/rails42.gemfile
-    - rvm: 2.7.0
-      gemfile: gemfiles/rails42_boc.gemfile
-    - rvm: 2.7.0
-      gemfile: gemfiles/rails42_haml.gemfile
-    - rvm: ruby-head
-      gemfile: gemfiles/rails42.gemfile
-    - rvm: ruby-head
-      gemfile: gemfiles/rails42_boc.gemfile
-    - rvm: ruby-head
-      gemfile: gemfiles/rails42_haml.gemfile
-    - rvm: truffleruby-head
-      gemfile: gemfiles/rails42_boc.gemfile
-    - rvm: truffleruby-head
-      gemfile: gemfiles/rails50_boc.gemfile
-    - rvm: truffleruby-head
-      gemfile: gemfiles/rails51_boc.gemfile
-    - rvm: truffleruby-head
-      gemfile: gemfiles/rails52_boc.gemfile
-    - rvm: truffleruby-head
-      gemfile: gemfiles/rails60_boc.gemfile
-    - rvm: truffleruby-head
-      gemfile: gemfiles/rack_boc.gemfile
diff --git a/gemfiles/pry010.gemfile b/gemfiles/pry010.gemfile
index 4503b67c..1daca580 100644
--- a/gemfiles/pry010.gemfile
+++ b/gemfiles/pry010.gemfile
@@ -4,6 +4,7 @@ gem 'rack', RUBY_VERSION < '2.2.2' ? '~> 1.6' : '~> 2.0'
 gem "binding_of_caller"
 gem "pry", "~> 0.10.0"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/pry011.gemfile b/gemfiles/pry011.gemfile
index 761c5918..206b89d7 100644
--- a/gemfiles/pry011.gemfile
+++ b/gemfiles/pry011.gemfile
@@ -3,6 +3,7 @@ source "https://rubygems.org"
 gem 'rack', RUBY_VERSION < '2.2.2' ? '~> 1.6' : '~> 2.0'
 gem "pry", "~> 0.11.0pre"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/pry09.gemfile b/gemfiles/pry09.gemfile
index db7fa6bc..130326b9 100644
--- a/gemfiles/pry09.gemfile
+++ b/gemfiles/pry09.gemfile
@@ -3,6 +3,7 @@ source "https://rubygems.org"
 gem 'rack', RUBY_VERSION < '2.2.2' ? '~> 1.6' : '~> 2.0'
 gem "pry", "~> 0.9.12"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rack.gemfile b/gemfiles/rack.gemfile
index 4f2bab73..b5bbff7a 100644
--- a/gemfiles/rack.gemfile
+++ b/gemfiles/rack.gemfile
@@ -2,6 +2,7 @@ source "https://rubygems.org"
 
 gem 'rack', RUBY_VERSION < '2.2.2' ? '~> 1.6' : '~> 2.0'
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rack_boc.gemfile b/gemfiles/rack_boc.gemfile
index 0899c028..09520d9b 100644
--- a/gemfiles/rack_boc.gemfile
+++ b/gemfiles/rack_boc.gemfile
@@ -3,6 +3,7 @@ source "https://rubygems.org"
 gem 'rack', RUBY_VERSION < '2.2.2' ? '~> 1.6' : '~> 2.0'
 gem "binding_of_caller"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails42.gemfile b/gemfiles/rails42.gemfile
index ba2e191f..caaeb8ef 100644
--- a/gemfiles/rails42.gemfile
+++ b/gemfiles/rails42.gemfile
@@ -4,6 +4,7 @@ gem "rails", "~> 4.2.0"
 gem 'nokogiri', RUBY_VERSION < '2.1' ? '~> 1.6.0' : '>= 1.7'
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails42_boc.gemfile b/gemfiles/rails42_boc.gemfile
index 2e66ac54..c3619a6a 100644
--- a/gemfiles/rails42_boc.gemfile
+++ b/gemfiles/rails42_boc.gemfile
@@ -5,6 +5,7 @@ gem 'nokogiri', RUBY_VERSION < '2.1' ? '~> 1.6.0' : '>= 1.7'
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 gem "binding_of_caller"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails42_haml.gemfile b/gemfiles/rails42_haml.gemfile
index a22370a6..6f656aae 100644
--- a/gemfiles/rails42_haml.gemfile
+++ b/gemfiles/rails42_haml.gemfile
@@ -5,6 +5,7 @@ gem 'nokogiri', RUBY_VERSION < '2.1' ? '~> 1.6.0' : '>= 1.7'
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 gem "haml"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails50.gemfile b/gemfiles/rails50.gemfile
index 7d31f08d..856109f5 100644
--- a/gemfiles/rails50.gemfile
+++ b/gemfiles/rails50.gemfile
@@ -3,6 +3,7 @@ source "https://rubygems.org"
 gem "rails", "~> 5.0.0"
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails50_boc.gemfile b/gemfiles/rails50_boc.gemfile
index a7955aad..6632ab09 100644
--- a/gemfiles/rails50_boc.gemfile
+++ b/gemfiles/rails50_boc.gemfile
@@ -4,6 +4,7 @@ gem "rails", "~> 5.0.0"
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 gem "binding_of_caller"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails50_haml.gemfile b/gemfiles/rails50_haml.gemfile
index 5ad597ec..c549086b 100644
--- a/gemfiles/rails50_haml.gemfile
+++ b/gemfiles/rails50_haml.gemfile
@@ -4,6 +4,7 @@ gem "rails", "~> 5.0.0"
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 gem "haml"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails51.gemfile b/gemfiles/rails51.gemfile
index 5532febb..6b80d819 100644
--- a/gemfiles/rails51.gemfile
+++ b/gemfiles/rails51.gemfile
@@ -3,6 +3,7 @@ source "https://rubygems.org"
 gem "rails", "~> 5.1.0"
 gem 'i18n', '< 1.5.2', require: false if RUBY_VERSION < '2.3'
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails51_boc.gemfile b/gemfiles/rails51_boc.gemfile
index bfb2cc92..391459d4 100644
--- a/gemfiles/rails51_boc.gemfile
+++ b/gemfiles/rails51_boc.gemfile
@@ -4,6 +4,7 @@ gem "rails", "~> 5.1.0"
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 gem "binding_of_caller"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails51_haml.gemfile b/gemfiles/rails51_haml.gemfile
index a870a7cf..4be7c4bc 100644
--- a/gemfiles/rails51_haml.gemfile
+++ b/gemfiles/rails51_haml.gemfile
@@ -4,6 +4,7 @@ gem "rails", "~> 5.1.0"
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 gem "haml"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails52.gemfile b/gemfiles/rails52.gemfile
index 070970cd..887de07d 100644
--- a/gemfiles/rails52.gemfile
+++ b/gemfiles/rails52.gemfile
@@ -3,6 +3,7 @@ source "https://rubygems.org"
 gem "rails", "~> 5.2.0"
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails52_boc.gemfile b/gemfiles/rails52_boc.gemfile
index 195e4e23..669c73fd 100644
--- a/gemfiles/rails52_boc.gemfile
+++ b/gemfiles/rails52_boc.gemfile
@@ -4,6 +4,7 @@ gem "rails", "~> 5.2.0"
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 gem "binding_of_caller"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails52_haml.gemfile b/gemfiles/rails52_haml.gemfile
index dd9f0dc9..c2bb1f57 100644
--- a/gemfiles/rails52_haml.gemfile
+++ b/gemfiles/rails52_haml.gemfile
@@ -4,6 +4,7 @@ gem "rails", "~> 5.2.0"
 gem 'i18n', '< 1.5.2' if RUBY_VERSION < '2.3'
 gem "haml"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails60.gemfile b/gemfiles/rails60.gemfile
index 55f89c5e..825f46ca 100644
--- a/gemfiles/rails60.gemfile
+++ b/gemfiles/rails60.gemfile
@@ -2,6 +2,7 @@ source "https://rubygems.org"
 
 gem "rails", "~> 6.0.0"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails60_boc.gemfile b/gemfiles/rails60_boc.gemfile
index 190c573c..c32cb5d9 100644
--- a/gemfiles/rails60_boc.gemfile
+++ b/gemfiles/rails60_boc.gemfile
@@ -3,6 +3,7 @@ source "https://rubygems.org"
 gem "rails", "~> 6.0.0"
 gem "binding_of_caller"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/gemfiles/rails60_haml.gemfile b/gemfiles/rails60_haml.gemfile
index 84d3401a..e4f3179c 100644
--- a/gemfiles/rails60_haml.gemfile
+++ b/gemfiles/rails60_haml.gemfile
@@ -3,6 +3,7 @@ source "https://rubygems.org"
 gem "rails", "~> 6.0.0"
 gem "haml"
 
-gem 'coveralls', require: false
+gem 'simplecov',      require: false
+gem 'simplecov-lcov', require: false
 
 gemspec path: "../"
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 29e5ac18..9828c3f3 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -2,19 +2,31 @@
 
 ENV["EDITOR"] = nil
 
-# Ruby 2.4.0 and 2.4.1 has a bug with its Coverage module that causes segfaults.
-# https://bugs.ruby-lang.org/issues/13305
-# 2.4.2 should include this patch.
-if ENV['CI']
-  unless RUBY_VERSION == '2.4.0' || RUBY_VERSION == '2.4.1'
-    require 'coveralls'
-    Coveralls.wear! do
-      add_filter 'spec/'
+require 'simplecov'
+require 'simplecov-lcov'
+
+# Fix incompatibility of simplecov-lcov with older versions of simplecov that are not expresses in its gemspec.
+# https://github.com/fortissimo1997/simplecov-lcov/pull/25
+if !SimpleCov.respond_to?(:branch_coverage)
+  module SimpleCov
+    def self.branch_coverage?
+      false
     end
   end
-else
-  require 'simplecov'
-  SimpleCov.start
+end
+
+SimpleCov::Formatter::LcovFormatter.config do |c|
+  c.report_with_single_file = true
+  c.single_report_path = 'coverage/lcov.info'
+end
+SimpleCov.formatters = SimpleCov::Formatter::MultiFormatter.new(
+  [
+    SimpleCov::Formatter::HTMLFormatter,
+    SimpleCov::Formatter::LcovFormatter,
+  ]
+)
+SimpleCov.start do
+  add_filter 'spec/'
 end
 
 require 'bundler/setup'