diff --git a/Rakefile b/Rakefile
index ec565d7..5789ea4 100644
--- a/Rakefile
+++ b/Rakefile
@@ -23,6 +23,5 @@ GemHadar do
   dependency             'tins', '~>1.0'
   development_dependency 'simplecov'
   development_dependency 'test-unit'
-
-  required_ruby_version '>= 2.0'
+  development_dependency 'utils'
 end
diff --git a/term-ansicolor.gemspec b/term-ansicolor.gemspec
index 103c8f6..d322714 100644
--- a/term-ansicolor.gemspec
+++ b/term-ansicolor.gemspec
@@ -8,38 +8,34 @@ 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 = "2019-01-18"
+  s.date = "2022-07-08"
   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_snow".freeze, "term_display".freeze, "term_decolor".freeze, "term_cdiff".freeze, "term_mandel".freeze, "term_colortab".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/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 = [".gitignore".freeze, ".travis.yml".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/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/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, "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/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/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 = "http://flori.github.com/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.required_ruby_version = Gem::Requirement.new(">= 2.0".freeze)
-  s.rubygems_version = "3.0.1".freeze
+  s.rubygems_version = "3.3.14".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/ppm_reader_test.rb".freeze, "tests/rgb_color_metrics_test.rb".freeze, "tests/rgb_triple_test.rb".freeze, "tests/test_helper.rb".freeze]
 
   if s.respond_to? :specification_version then
     s.specification_version = 4
+  end
 
-    if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_development_dependency(%q<gem_hadar>.freeze, ["~> 1.9.1"])
-      s.add_development_dependency(%q<simplecov>.freeze, [">= 0"])
-      s.add_development_dependency(%q<test-unit>.freeze, [">= 0"])
-      s.add_runtime_dependency(%q<tins>.freeze, ["~> 1.0"])
-    else
-      s.add_dependency(%q<gem_hadar>.freeze, ["~> 1.9.1"])
-      s.add_dependency(%q<simplecov>.freeze, [">= 0"])
-      s.add_dependency(%q<test-unit>.freeze, [">= 0"])
-      s.add_dependency(%q<tins>.freeze, ["~> 1.0"])
-    end
+  if s.respond_to? :add_runtime_dependency then
+    s.add_development_dependency(%q<gem_hadar>.freeze, ["~> 1.12.0"])
+    s.add_development_dependency(%q<simplecov>.freeze, [">= 0"])
+    s.add_development_dependency(%q<test-unit>.freeze, [">= 0"])
+    s.add_development_dependency(%q<utils>.freeze, [">= 0"])
+    s.add_runtime_dependency(%q<tins>.freeze, ["~> 1.0"])
   else
-    s.add_dependency(%q<gem_hadar>.freeze, ["~> 1.9.1"])
+    s.add_dependency(%q<gem_hadar>.freeze, ["~> 1.12.0"])
     s.add_dependency(%q<simplecov>.freeze, [">= 0"])
     s.add_dependency(%q<test-unit>.freeze, [">= 0"])
+    s.add_dependency(%q<utils>.freeze, [">= 0"])
     s.add_dependency(%q<tins>.freeze, ["~> 1.0"])
   end
 end