When deploying tipbot ruby version is incorrect.

[thesolarminer]

-----> Ruby app detected
-----> Compiling Ruby/Rack
-----> Using Ruby version: ruby-2.3.1
-----> Installing dependencies using bundler 1.13.6
Running: bundle install --without development:test --path vendor/bundle --binstubs

vendor/bundle/bin -j4 --deployment
Your Ruby version is 2.3.1, but your Gemfile specified 2.2.3
Bundler Output: Your Ruby version is 2.3.1, but your Gemfile specified 2.2.3
!
! Failed to install gems via Bundler.
!
! Push rejected, failed to compile Ruby app.
! Push failed

[ssmcclay]

You have to change the version to 2.3.1 in the Gemfile.lock