diff --git a/Gemfile b/Gemfile
index f7be312342..4bf008456e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,5 +15,4 @@ gem 'rubocop-rake', '0.6.0'
 gem 'simplecov', '0.22.0'
 gem 'test-unit', '3.6.2'
 gem 'timecop', '0.9.8'
-gem 'tzinfo', '2.0.6'
 gem 'yard', '0.9.36'
diff --git a/test/test_en_locale.rb b/test/test_en_locale.rb
index dcf225d859..d6dec7eed5 100644
--- a/test/test_en_locale.rb
+++ b/test/test_en_locale.rb
@@ -1,6 +1,5 @@
 # frozen_string_literal: true
 
-require 'tzinfo'
 require_relative 'test_helper'
 
 class TestEnLocale < Test::Unit::TestCase
@@ -40,13 +39,6 @@ def test_values_trimmed
     check_hash(en_file)
   end
 
-  def test_en_timezones_are_valid_iana_identifiers
-    faker_time_zones = Faker::Address.translate('faker.address.time_zone')
-    iana_time_zones = TZInfo::Timezone.all_identifiers
-
-    assert_empty(faker_time_zones.difference(iana_time_zones), "Found a time zone that isn't a valid IANA time zone identifier")
-  end
-
   def check_hash(hash)
     hash.each { |key, value| check_value(value) unless key == 'separator' }
   end