Gemfile in spring-0.0.10 vs Gemfile in spring-0.0.11

@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in spring.gemspec
 gemspec
 
-gem 'listen', :require => false
+gem 'listen', "~> 1.0", :require => false