Gemfile in mailersend-ruby-1.6.0 vs Gemfile in mailersend-ruby-2.0.0

@@ -2,9 +2,9 @@
 
 source 'https://rubygems.org'
 gemspec
 
 group :development do
-  gem 'bundler', '~> 2.4.10'
-  gem 'rake', '~> 13.0.6'
-  gem 'rubocop', '~> 1.52.1'
+  gem 'bundler', '~> 2.4.22'
+  gem 'rake', '~> 13.0'
+  gem 'rubocop', '~> 1.7'
 end