```ruby
Gem::Specification.new do |s|
  s.name        = 'grizzly_ber'
  s.version     = '0.0.4'
  s.date        = '2014-11-11'
  s.summary     = "Fiercest TLV-BER parser"
  s.description = "CODEC for TLV-BER encoded strings."
  s.authors     = ["Ryan Balsdon"]
  s.email       = 'ryan.balsdon@shopify.com'
  s.files       = ["lib/grizzly_ber.rb"]
  s.homepage    = ''
  s.license     = 'MIT'
  s.files       = ["lib/grizzly_ber.rb", "lib/grizzly_tag.rb"]
end```

Set minimum ruby version in gemspec
user
```ruby
Gem::Specification.new do |s|
  s.name        = 'grizzly_ber'
  s.version     = '0.0.4'
  s.date        = '2014-11-11'
  s.summary     = "Fiercest TLV-BER parser"
  s.description = "CODEC for TLV-BER encoded strings."
  s.authors     = ["Ryan Balsdon"]
  s.email       = 'ryan.balsdon@shopify.com'
  s.files       = ["lib/grizzly_ber.rb"]
  s.homepage    = ''
  s.license     = 'MIT'
  s.files       = ["lib/grizzly_ber.rb", "lib/grizzly_tag.rb"]
  s.required_ruby_version = '>= 2.0.0' #This gem uses some keyword args
end```
assistant