Potential test fix for those using Rails 4.1.7, Rspec 3.1.0, Capybara 2.4.4

This is more of an "I fixed this by doing $x and want to know if that's okay to do" sort of question.

I decided to use the latest version of these gems because I was feeling adventurous. When I tried to run the tests as written in the video, I received this error:

Failures:

  1) Creating todo lists redirects to the todo list index page on success
     Failure/Error: visit "/todo_lists"
     NoMethodError:
       undefined method `visit' for #<RSpec::ExampleGroups::CreatingTodoLists:0x007fae13175520>
     # ./spec/features/todo_lists/create_spec.rb:5:in `block (2 levels) in <top (required)>'

Finished in 0.00061 seconds (files took 0.12594 seconds to load)
1 example, 1 failure

Failed examples:

rspec ./spec/features/todo_lists/create_spec.rb:4 # Creating todo lists redirects to the todo list index page on success

In order to fix it, I had to remove require 'spec_helper' from spec_helper.rb and add require 'rails_helper' to the top of the test file. It simply wouldn't pass the test otherwise.

So my question is this: It appears to work just fine, but I don't know enough about Rails to be certain that this is the correct way to fix this. I know this doesn't follow the video exactly, but any input is appreciated. Thanks!