Chromdriver-helper forces me to use it on every project once I install it on a single project

Console explanation

deivid@pantani ~/Code/test_app $ cat Gemfile
source "https://rubygems.org"

# My superawesome project with a lot of dependencies that does a lot of cool
# stuff, does not depend on chromedriver-helper and gets tested using a chromedriver
# version globally installed at /usr/local/bin/chromedriver

deivid@pantani ~/Code/test_app $ chromedriver --version
ChromeDriver 2.35.528139 (47ead77cb35ad2a9a83248b292151462a66cd881)

deivid@pantani ~/Code/test_app $ bundle exec chromedriver --version
ChromeDriver 2.35.528139 (47ead77cb35ad2a9a83248b292151462a66cd881)

deivid@pantani ~/Code/test_app $ which chromedriver 
/usr/local/bin/chromedriver

deivid@pantani ~/Code/test_app $ bundle exec which chromedriver 
/usr/local/bin/chromedriver

deivid@pantani ~/Code/test_app2 $ cat Gemfile
source "https://rubygems.org"

gem "chromedriver-helper"
deivid@pantani ~/Code/test_app2 $ bundle
Fetching gem metadata from https://rubygems.org/.............
Using io-like 0.3.0
Using archive-zip 0.7.0
Using bundler 1.16.1
Using mini_portile2 2.3.0
Using nokogiri 1.8.2
Fetching chromedriver-helper 1.1.0
Installing chromedriver-helper 1.1.0
Bundle complete! 1 Gemfile dependency, 6 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.

deivid@pantani ~/Code/test_app2 $ bundle exec chromedriver --version
ChromeDriver 2.38.552522 (437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb)

deivid@pantani ~/Code/test_app2 $ bundle exec which chromedriver 
/home/deivid/.rbenv/versions/2.5.1/bin/chromedriver

deivid@pantani ~/Code/test_app2 $ chromedriver --version
ChromeDriver 2.35.528139 (47ead77cb35ad2a9a83248b292151462a66cd881)

deivid@pantani ~/Code/test_app2 $ which chromedriver 
/usr/local/bin/chromedriver

deivid@pantani ~/Code/test_app2 $ cd ../test_app/

deivid@pantani ~/Code/test_app $ bundle exec chromedriver --version
bundler: failed to load command: chromedriver (/home/deivid/.rbenv/versions/2.5.1/bin/chromedriver)
Gem::Exception: can't find executable chromedriver for gem chromedriver-helper. chromedriver-helper is not currently included in the bundle, perhaps you meant to add it to your Gemfile?
  /home/deivid/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/bundler/rubygems_integration.rb:458:in `block in replace_bin_path'
  /home/deivid/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/bundler/rubygems_integration.rb:478:in `block in replace_bin_path'
  /home/deivid/.rbenv/versions/2.5.1/bin/chromedriver:23:in `<top (required)>'

deivid@pantani ~/Code/test_app $ bundle exec which chromedriver 
/home/deivid/.rbenv/versions/2.5.1/bin/chromedriver