Gemfile in keep_up-0.8.0 vs Gemfile in keep_up-0.8.1

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 # Specify your gem's dependencies in keep_up.gemspec
 gemspec