diff --git a/lib/term/ansicolor/attribute.rb b/lib/term/ansicolor/attribute.rb
index 0294f21..ac8965c 100644
--- a/lib/term/ansicolor/attribute.rb
+++ b/lib/term/ansicolor/attribute.rb
@@ -3,31 +3,15 @@ module ANSIColor
     class Attribute
       @__store__ = {}
 
-      if RUBY_VERSION < '1.9'
-        @__order__ = []
-
-        def self.set(name, code, options = {})
-          name = name.to_sym
-          result = @__store__[name] = new(name, code, options)
-          @__order__ << name
-          @rgb_colors = nil
-          result
-        end
-
-        def self.attributes(&block)
-          @__order__.map { |name| @__store__[name] }
-        end
-      else
-        def self.set(name, code, options = {})
-          name = name.to_sym
-          result = @__store__[name] = new(name, code, options)
-          @rgb_colors = nil
-          result
-        end
+      def self.set(name, code, options = {})
+        name = name.to_sym
+        result = @__store__[name] = new(name, code, options)
+        @rgb_colors = nil
+        result
+      end
 
-        def self.attributes(&block)
-          @__store__.each_value(&block)
-        end
+      def self.attributes(&block)
+        @__store__.each_value(&block)
       end
 
       def self.[](name, true_coloring: false)
diff --git a/term-ansicolor.gemspec b/term-ansicolor.gemspec
index d4cbdda..13d5f9e 100644
--- a/term-ansicolor.gemspec
+++ b/term-ansicolor.gemspec
@@ -8,16 +8,16 @@ Gem::Specification.new do |s|
   s.required_rubygems_version = Gem::Requirement.new(">= 0".freeze) if s.respond_to? :required_rubygems_version=
   s.require_paths = ["lib".freeze]
   s.authors = ["Florian Frank".freeze]
-  s.date = "2024-06-18"
+  s.date = "2024-06-21"
   s.description = "This library uses ANSI escape sequences to control the attributes of terminal output".freeze
   s.email = "flori@ping.de".freeze
   s.executables = ["term_cdiff".freeze, "term_colortab".freeze, "term_decolor".freeze, "term_display".freeze, "term_mandel".freeze, "term_snow".freeze]
   s.extra_rdoc_files = ["README.md".freeze, "lib/term/ansicolor.rb".freeze, "lib/term/ansicolor/attribute.rb".freeze, "lib/term/ansicolor/attribute/color256.rb".freeze, "lib/term/ansicolor/attribute/color8.rb".freeze, "lib/term/ansicolor/attribute/intense_color8.rb".freeze, "lib/term/ansicolor/attribute/text.rb".freeze, "lib/term/ansicolor/hsl_triple.rb".freeze, "lib/term/ansicolor/hyperlink.rb".freeze, "lib/term/ansicolor/movement.rb".freeze, "lib/term/ansicolor/ppm_reader.rb".freeze, "lib/term/ansicolor/rgb_color_metrics.rb".freeze, "lib/term/ansicolor/rgb_triple.rb".freeze, "lib/term/ansicolor/version.rb".freeze]
-  s.files = [".all_images.yml".freeze, ".gitignore".freeze, ".tool-versions".freeze, ".utilsrc".freeze, "CHANGES".freeze, "COPYING".freeze, "Gemfile".freeze, "README.md".freeze, "Rakefile".freeze, "VERSION".freeze, "bin/term_cdiff".freeze, "bin/term_colortab".freeze, "bin/term_decolor".freeze, "bin/term_display".freeze, "bin/term_mandel".freeze, "bin/term_snow".freeze, "examples/example.rb".freeze, "examples/lambda-red-plain.ppm".freeze, "examples/lambda-red.png".freeze, "examples/lambda-red.ppm".freeze, "lib/term/ansicolor.rb".freeze, "lib/term/ansicolor/.keep".freeze, "lib/term/ansicolor/attribute.rb".freeze, "lib/term/ansicolor/attribute/color256.rb".freeze, "lib/term/ansicolor/attribute/color8.rb".freeze, "lib/term/ansicolor/attribute/intense_color8.rb".freeze, "lib/term/ansicolor/attribute/text.rb".freeze, "lib/term/ansicolor/hsl_triple.rb".freeze, "lib/term/ansicolor/hyperlink.rb".freeze, "lib/term/ansicolor/movement.rb".freeze, "lib/term/ansicolor/ppm_reader.rb".freeze, "lib/term/ansicolor/rgb_color_metrics.rb".freeze, "lib/term/ansicolor/rgb_triple.rb".freeze, "lib/term/ansicolor/version.rb".freeze, "term-ansicolor.gemspec".freeze, "tests/ansicolor_test.rb".freeze, "tests/attribute_test.rb".freeze, "tests/hsl_triple_test.rb".freeze, "tests/hyperlink_test.rb".freeze, "tests/ppm_reader_test.rb".freeze, "tests/rgb_color_metrics_test.rb".freeze, "tests/rgb_triple_test.rb".freeze, "tests/test_helper.rb".freeze]
+  s.files = [".all_images.yml".freeze, ".gitignore".freeze, ".utilsrc".freeze, "CHANGES".freeze, "COPYING".freeze, "Gemfile".freeze, "README.md".freeze, "Rakefile".freeze, "VERSION".freeze, "bin/term_cdiff".freeze, "bin/term_colortab".freeze, "bin/term_decolor".freeze, "bin/term_display".freeze, "bin/term_mandel".freeze, "bin/term_snow".freeze, "examples/example.rb".freeze, "examples/lambda-red-plain.ppm".freeze, "examples/lambda-red.png".freeze, "examples/lambda-red.ppm".freeze, "lib/term/ansicolor.rb".freeze, "lib/term/ansicolor/.keep".freeze, "lib/term/ansicolor/attribute.rb".freeze, "lib/term/ansicolor/attribute/color256.rb".freeze, "lib/term/ansicolor/attribute/color8.rb".freeze, "lib/term/ansicolor/attribute/intense_color8.rb".freeze, "lib/term/ansicolor/attribute/text.rb".freeze, "lib/term/ansicolor/hsl_triple.rb".freeze, "lib/term/ansicolor/hyperlink.rb".freeze, "lib/term/ansicolor/movement.rb".freeze, "lib/term/ansicolor/ppm_reader.rb".freeze, "lib/term/ansicolor/rgb_color_metrics.rb".freeze, "lib/term/ansicolor/rgb_triple.rb".freeze, "lib/term/ansicolor/version.rb".freeze, "term-ansicolor.gemspec".freeze, "tests/ansicolor_test.rb".freeze, "tests/attribute_test.rb".freeze, "tests/hsl_triple_test.rb".freeze, "tests/hyperlink_test.rb".freeze, "tests/ppm_reader_test.rb".freeze, "tests/rgb_color_metrics_test.rb".freeze, "tests/rgb_triple_test.rb".freeze, "tests/test_helper.rb".freeze]
   s.homepage = "https://github.com/flori/term-ansicolor".freeze
   s.licenses = ["Apache-2.0".freeze]
   s.rdoc_options = ["--title".freeze, "Term-ansicolor - Ruby library that colors strings using ANSI escape sequences".freeze, "--main".freeze, "README.md".freeze]
-  s.rubygems_version = "3.5.3".freeze
+  s.rubygems_version = "3.5.11".freeze
   s.summary = "Ruby library that colors strings using ANSI escape sequences".freeze
   s.test_files = ["tests/ansicolor_test.rb".freeze, "tests/attribute_test.rb".freeze, "tests/hsl_triple_test.rb".freeze, "tests/hyperlink_test.rb".freeze, "tests/ppm_reader_test.rb".freeze, "tests/rgb_color_metrics_test.rb".freeze, "tests/rgb_triple_test.rb".freeze, "tests/test_helper.rb".freeze]