Gemfile in sucker_punch-backgroundable-0.1.0 vs Gemfile in sucker_punch-backgroundable-0.2.0

@@ -1,9 +1,9 @@
 source "http://rubygems.org"
 # Add dependencies required to use your gem here.
 # Example:
 #   gem "activesupport", ">= 2.3.5"
-gem "sucker_punch", ">= 1.0.0"
+gem "sucker_punch", "~> 1.0"
 
 # Add dependencies to develop your gem here.
 # Include everything needed to run rake, tests, features, etc.
 group :development do
   gem "rspec", "~> 2.8.0"