diff --git a/.ruby-version b/.ruby-version
index ef538c2..d13e837 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.1.2
+4.0.6
diff --git a/Gemfile b/Gemfile
index 1661771..828242e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,17 +3,14 @@ source "https://rubygems.org"
 gemspec
 
 group :development, :test do
-  gem 'rspec'      # testing framework
-  gem 'simplecov', require: false
+  gem 'rspec'
   gem 'json'
-  gem 'simplecov_json_formatter'
   gem 'builder'
   gem 'rubocop', require: false
   gem 'rubocop-checkstyle_formatter', require: false
   gem 'rubocop-rspec', require: false
   gem 'rubocop-thread_safety'
   gem 'brakeman'
-  gem 'coveralls_reborn', '~> 0.27.0', require: false
 end
 
 group :development do
diff --git a/Rakefile b/Rakefile
index 5e3d3c7..38c754d 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,17 +1,17 @@
-require "bundler/setup"
+# require "bundler/setup"
 
-APP_RAKEFILE = File.expand_path("spec/dummy/Rakefile", __dir__)
-load "rails/tasks/engine.rake"
+# APP_RAKEFILE = File.expand_path("spec/dummy/Rakefile", __dir__)
+# load "rails/tasks/engine.rake"
 
-load "rails/tasks/statistics.rake"
+# load "rails/tasks/statistics.rake"
 
 require "bundler/gem_tasks"
 
-require "rake/testtask"
+# require "rake/testtask"
 
-Rake.add_rakelib 'lib/tasks'
+# Rake.add_rakelib 'lib/tasks'
 
-# add rspec rake task
-require 'rspec/core/rake_task'
-RSpec::Core::RakeTask.new(:spec)
-task default: :spec
+# # add rspec rake task
+# require 'rspec/core/rake_task'
+# RSpec::Core::RakeTask.new(:spec)
+# task default: :spec
diff --git a/lib/ruby_branch_coverage/version.rb b/lib/ruby_branch_coverage/version.rb
index 2234f27..9ae9bce 100644
--- a/lib/ruby_branch_coverage/version.rb
+++ b/lib/ruby_branch_coverage/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 class RubyBranchCoverage
-  VERSION = '0.1.7'
+  VERSION = '1.1.0'
 end
diff --git a/lib/tasks/simplecov.rake b/lib/tasks/simplecov.rake
index f00f38f..e6e85ff 100644
--- a/lib/tasks/simplecov.rake
+++ b/lib/tasks/simplecov.rake
@@ -9,16 +9,16 @@ namespace :simplecov do
     SimpleCov.start 'rails' do
       enable_coverage :branch
 
-      add_filter '/spec/'
-      add_filter '/config/'
-      add_filter '/db/'
-      add_filter '/vendor/'
+      skip '/spec/'
+      skip '/config/'
+      skip '/db/'
+      skip '/vendor/'
 
-      add_group 'Decorators', 'app/decorators'
-      add_group 'Forms', 'app/forms'
-      add_group 'Services', 'app/services'
-      add_group 'ViewObjects', 'app/view_objects'
-      add_group 'Batches', 'app/batches'
+      group 'Decorators', 'app/decorators'
+      group 'Forms', 'app/forms'
+      group 'Services', 'app/services'
+      group 'ViewObjects', 'app/view_objects'
+      group 'Batches', 'app/batches'
 
       merge_timeout 3600
     end
diff --git a/ruby_branch_coverage.gemspec b/ruby_branch_coverage.gemspec
index 75f2c71..6d041ff 100644
--- a/ruby_branch_coverage.gemspec
+++ b/ruby_branch_coverage.gemspec
@@ -7,12 +7,12 @@ Gem::Specification.new do |s|
     s.description = 'A program to convert json to xml test coverage format gem'
     s.authors     = ['Suganya']
     s.email       = ['kuppusamy.suganya@moneyforward.co.jp']
-    s.files = Dir["{config,lib}/**/*", "Rakefile"]
+    s.files = `git ls-files -z`.split("\x0").
+      reject { |f| f.match(%r{^(test|spec|features)/}) }
     s.homepage    =
-      'https://rubygems.pkg.github.com/moneyforward/ruby_branch_coverage'
+      'https://github.com/moneyforward/ruby_branch_coverage'
 
-    s.metadata["allowed_push_host"] = 'https://rubygems.pkg.github.com'
     s.add_development_dependency "rspec-rails"
     s.add_dependency "rails"
-    s.add_dependency 'simplecov'
+    s.add_dependency 'simplecov', '>= 1.0.0'
 end