Gemfile.rails-6.0 in bullet-6.1.0 vs Gemfile.rails-6.0 in bullet-6.1.1

@@ -1,9 +1,9 @@
 source "https://rubygems.org"
 
 gemspec
 
-gem 'rails', '6.0.0'
+gem 'rails', '~> 6.0.0'
 gem 'sqlite3'
 gem 'activerecord-jdbcsqlite3-adapter', platforms: [:jruby]
 gem 'activerecord-import'
 
 gem "rspec"