```ruby
require_relative 'lib/svgeez/version'

Gem::Specification.new do |spec|
  spec.required_ruby_version = Gem::Requirement.new('>= 2.5', '< 4')

  spec.name          = 'svgeez'
  spec.version       = Svgeez::VERSION
  spec.authors       = ['Jason Garber']
  spec.email         = ['jason@sixtwothree.org']

  spec.summary       = 'Automatically generate an SVG sprite from a folder of SVG icons.'
  spec.description   = spec.summary
  spec.homepage      = 'https://github.com/jgarber623/svgeez'
  spec.license       = 'MIT'

  spec.files         = Dir.chdir(File.expand_path(__dir__)) do
    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(bin|spec)/}) }
  end

  spec.bindir        = 'exe'
  spec.executables   = ['svgeez']
  spec.require_paths = ['lib']

  spec.metadata['bug_tracker_uri'] = "#{spec.homepage}/issues"
  spec.metadata['changelog_uri']   = "#{spec.homepage}/blob/v#{spec.version}/CHANGELOG.md"

  spec.add_runtime_dependency 'listen', '~> 3.5'
  spec.add_runtime_dependency 'mercenary', '~> 0.4.0'
end
```

Use simple strings for declaring Ruby versions
user
```ruby
require_relative 'lib/svgeez/version'

Gem::Specification.new do |spec|
  spec.required_ruby_version = '>= 2.5', '< 4'

  spec.name          = 'svgeez'
  spec.version       = Svgeez::VERSION
  spec.authors       = ['Jason Garber']
  spec.email         = ['jason@sixtwothree.org']

  spec.summary       = 'Automatically generate an SVG sprite from a folder of SVG icons.'
  spec.description   = spec.summary
  spec.homepage      = 'https://github.com/jgarber623/svgeez'
  spec.license       = 'MIT'

  spec.files         = Dir.chdir(File.expand_path(__dir__)) do
    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(bin|spec)/}) }
  end

  spec.bindir        = 'exe'
  spec.executables   = ['svgeez']
  spec.require_paths = ['lib']

  spec.metadata['bug_tracker_uri'] = "#{spec.homepage}/issues"
  spec.metadata['changelog_uri']   = "#{spec.homepage}/blob/v#{spec.version}/CHANGELOG.md"

  spec.add_runtime_dependency 'listen', '~> 3.5'
  spec.add_runtime_dependency 'mercenary', '~> 0.4.0'
end
```
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