README.md in combustion-1.2.0 vs README.md in combustion-1.3.0

@@ -8,10 +8,10 @@
 
 Get the gem into either your gemspec or your Gemfile, depending on how you manage your engine's dependencies:
 
 ```ruby
 # gemspec
-gem.add_development_dependency 'combustion', '~> 1.2'
+gem.add_development_dependency 'combustion', '~> 1.3'
 
 # Gemfile
 gem 'combustion', '~> 1.2'
 ```