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 (1.1.1) i18n (0.9.5) concurrent-ruby (~> 1.0) mini_portile2 (2.3.0) minitest (5.11.3) nokogiri (1.8.5) mini_portile2 (~> 2.3.0) thread_safe (0.3.6) tzinfo (1.2.5) thread_safe (~> 0.1) PLATFORMS ruby DEPENDENCIES activesupport nokogiri BUNDLED WITH 1.17.1