Gemfile in prawn-emoji-4.0.0 vs Gemfile in prawn-emoji-4.1.0

@@ -1,3 +1,8 @@
 source 'https://rubygems.org'
 
 gemspec
+
+gem 'rake', '>= 0'
+gem 'minitest', '>= 5.12.2'
+gem 'rr', '>= 0'
+gem 'rubyzip', '>= 1.0.0'