Gemfile in datacite-0.3.0 vs Gemfile in datacite-0.4.0

@@ -3,16 +3,14 @@
 source "https://rubygems.org"
 
 # Specify your gem's dependencies in datacite.gemspec
 gemspec
 
+# Specify development dependencies here
+gem "base64"
+gem "byebug"
 gem "rake", "~> 13.0"
-
 gem "rspec", "~> 3.0"
-
 gem "rubocop", "~> 1.7"
-
 gem "rubocop-rake", "~> 0.6.0"
 gem "rubocop-rspec", "~> 2.4"
-
-gem "byebug"
 gem "webmock", "~> 3.13"