iso-639.gemspec in iso-639-0.3.6 vs iso-639.gemspec in iso-639-0.3.8

@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
 Gem::Specification.new do |s|
   s.name = 'iso-639'
-  s.version = '0.3.6'
+  s.version = '0.3.8'
   s.licenses = ['MIT']
   s.summary = 'ISO 639-1 and ISO 639-2 language code entries and convenience methods.'
   s.description = 'ISO 639-1 and ISO 639-2 language code entries and convenience methods.'
   s.authors = ['William Melody']
   s.email = '[e-mail]'
@@ -25,9 +25,10 @@
     'test/helper.rb',
     'test/test_iso_639.rb'
   ]
   s.homepage = 'http://github.com/xwmx/iso-639'
   s.require_paths = ['lib']
+  s.add_dependency('csv')
   s.add_development_dependency('minitest',  '~> 5', '>= 0')
   s.add_development_dependency('mocha',     '~> 1', '>= 0')
   s.add_development_dependency('rdoc',      '~> 6', '>= 0')
   s.add_development_dependency('rubocop',   '~> 0', '>= 0.49.0')
   s.add_development_dependency('test-unit', '~> 3', '>= 0')