```ruby
# coding: utf-8
lib = File.expand_path("../lib", __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require "neovim/version"

Gem::Specification.new do |spec|
  spec.name          = "neovim"
  spec.version       = Neovim::VERSION
  spec.authors       = ["Alex Genco"]
  spec.email         = ["alexgenco@gmail.com"]
  spec.summary       = %q{A Ruby client for Neovim}
  spec.homepage      = "https://github.com/alexgenco/neovim-ruby"
  spec.license       = "MIT"

  spec.files         = `git ls-files -z`.split("\x0")
  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
  spec.test_files    = spec.files.grep(%r{^spec/})
  spec.require_paths = ["lib"]

  spec.add_dependency "msgpack", "0.7.0dev1"

  spec.add_development_dependency "bundler"
  spec.add_development_dependency "rake"
  spec.add_development_dependency "pry"
  spec.add_development_dependency "coveralls"
  spec.add_development_dependency "rspec", "~> 3.0"
end
```

Use non-dev version of msgpack gem
user
```ruby
# coding: utf-8
lib = File.expand_path("../lib", __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require "neovim/version"

Gem::Specification.new do |spec|
  spec.name          = "neovim"
  spec.version       = Neovim::VERSION
  spec.authors       = ["Alex Genco"]
  spec.email         = ["alexgenco@gmail.com"]
  spec.summary       = %q{A Ruby client for Neovim}
  spec.homepage      = "https://github.com/alexgenco/neovim-ruby"
  spec.license       = "MIT"

  spec.files         = `git ls-files -z`.split("\x0")
  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
  spec.test_files    = spec.files.grep(%r{^spec/})
  spec.require_paths = ["lib"]

  spec.add_dependency "msgpack", "~> 0.7"

  spec.add_development_dependency "bundler"
  spec.add_development_dependency "rake"
  spec.add_development_dependency "pry"
  spec.add_development_dependency "coveralls"
  spec.add_development_dependency "rspec", "~> 3.0"
end
```
assistant