README.md in rubocop-rspec-1.4.1 vs README.md in rubocop-rspec-1.5.0

@@ -83,10 +83,10 @@
 For running the spec files, this project depends on RuboCop's spec helpers.
 This means that in order to run the specs locally, you need a (shallow) clone
 of the RuboCop repository:
 
 ```bash
-git submodule update --init --depth 1 vendor/rubocop
+git submodule update --init vendor/rubocop
 ```
 
 ## License
 
 `rubocop-rspec` is MIT licensed. [See the accompanying file](MIT-LICENSE.md) for