diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 83b6060..6585980 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,6 +20,16 @@ jobs:
           - '3.3.7'
           - '3.4.2'
           - 'head'
+  finish:
+    needs: test
+    if: ${{ always() }}
+    runs-on: ubuntu-latest
+    steps:
+    - name: Coveralls Finished
+      uses: coverallsapp/github-action@v2
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }}
+        parallel-finished: true
 
     steps:
     - uses: actions/checkout@v4
@@ -36,3 +46,6 @@ jobs:
       uses: coverallsapp/github-action@v2
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}
+        path-to-lcov: ./coverage/lcov.info
+        flag-name: ruby-${{ matrix.ruby-version }}
+        parallel: true
diff --git a/Gemfile b/Gemfile
index 102c555..daadf0c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,6 +5,7 @@ source 'https://rubygems.org'
 gemspec
 gem 'bundler', '>= 1.9'
 gem 'coveralls_reborn', require: false
+gem 'simplecov-lcov', require: false
 gem 'rake', '>= 10.0'
 gem 'rake-hooks'
 gem 'rspec'
diff --git a/README.md b/README.md
index 8cd14dd..41f379b 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 # wareki - ruby 和暦ライブラリ
 
 [<img src="https://badge.fury.io/rb/wareki.svg" alt="Gem Version" />](https://badge.fury.io/rb/wareki)
-[<img src="https://travis-ci.org/sugi/wareki.svg?branch=master" alt="Build Status" />](https://travis-ci.org/sugi/wareki)
-[<img src="https://coveralls.io/repos/sugi/wareki/badge.svg?branch=master&service=github" alt="Coverage Status" />](https://coveralls.io/github/sugi/wareki?branch=master)
+[<img src="https://github.com/sugi/wareki/actions/workflows/ci.yml/badge.svg" alt="Build Status" />](https://github.com/sugi/wareki/actions/workflows/ci.yml)
+[<img src="https://coveralls.io/repos/github/sugi/wareki/badge.svg?branch=master" alt="Coverage Status" />](https://coveralls.io/github/sugi/wareki?branch=master)
 [<img src="https://api.codeclimate.com/v1/badges/c9209422700b526d2b45/maintainability" />](https://codeclimate.com/github/sugi/wareki/maintainability)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/9242ddf1725c404aac2d9f82b9bc1d75)](https://www.codacy.com/app/sugi/wareki?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=sugi/wareki&amp;utm_campaign=Badge_Grade)
 
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 579643e..a43441a 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -3,10 +3,16 @@
 unless defined? JRUBY_VERSION
   require 'simplecov'
   require 'coveralls'
-  
+  require 'simplecov-lcov'
+
+  SimpleCov::Formatter::LcovFormatter.config do |c|
+    c.report_with_single_file = true
+    c.single_report_path = 'coverage/lcov.info'
+  end
   SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter.new([
                                                                    SimpleCov::Formatter::HTMLFormatter,
-                                                                   Coveralls::SimpleCov::Formatter
+                                                                   Coveralls::SimpleCov::Formatter,
+                                                                   SimpleCov::Formatter::LcovFormatter
                                                                  ])
   SimpleCov.start do
     add_filter 'build-util/'