```ruby
MRuby::Gem::Specification.new('mruby-spec') do |spec|
  spec.license = 'MIT'
  spec.author  = 'Seba Gamboa'
  spec.summary = %q{Behaviour Driven Development for MRuby.}

  # Required to print test errors
  spec.add_dependency('mruby-print', :core => 'mruby-print')
end
```

Add version to gem spec
user
```ruby
MRuby::Gem::Specification.new('mruby-spec') do |spec|
  spec.license = 'MIT'
  spec.author  = 'Seba Gamboa'
  spec.summary = %q{Behaviour Driven Development for MRuby.}
  spec.version = '0.1.0'

  # Required to print test errors
  spec.add_dependency('mruby-print', :core => 'mruby-print')
end
```
assistant