GEM
  remote: https://rubygems.org/
  specs:
    activesupport (5.1.4)
      concurrent-ruby (~> 1.0, >= 1.0.2)
      i18n (~> 0.7)
      minitest (~> 5.1)
      tzinfo (~> 1.1)
    concurrent-ruby (1.0.5)
    i18n (0.9.4)
      concurrent-ruby (~> 1.0)
    minitest (5.11.3)
    mustermann (1.0.1)
    rack (2.0.4)
    rack-protection (2.0.0)
      rack
    sinatra (2.0.0)
      mustermann (~> 1.0)
      rack (~> 2.0)
      rack-protection (= 2.0.0)
      tilt (~> 2.0)
    thread_safe (0.3.6)
    tilt (2.0.8)
    tracking_number (1.0.3)
      activesupport (>= 4.2.5)
    tzinfo (1.2.5)
      thread_safe (~> 0.1)

PLATFORMS
  ruby

DEPENDENCIES
  sinatra (= 2.0)
  tracking_number (= 1.0.3)

RUBY VERSION
   ruby 2.5.0p0

BUNDLED WITH
   1.16.1