README.md in comma-4.7.0 vs README.md in comma-4.8.0

@@ -6,19 +6,19 @@
 
 ## Getting Started
 
 ### Prerequisites
 
-You need to use ruby 2.4 or later. If you generate CSV from ActiveRecord models, you need to have ActiveRecord 5.0 or later.
+You need to use ruby 3.0 or later. If you generate CSV from ActiveRecord models, you need to have ActiveRecord 6.0 or later.
 
 ### Installing
 
 Comma is distributed as a gem, best installed via Bundler.
 
 Include the gem in your Gemfile:
 
 ```ruby
-gem 'comma', '~> 4.5.0'
+gem 'comma', '~> 4.8.0'
 ```
 
 Or, if you want to live life on the edge, you can get master from the main comma repository:
 
 ```ruby