```ruby
$:.push File.expand_path("../lib", __FILE__)

# Maintain your gem's version:
require "dateslices/version"

# Describe your gem and declare its dependencies:
Gem::Specification.new do |s|
  s.name        = "dateslices"
  s.version     = Dateslices::VERSION
  s.authors     = ["Will Schenk"]
  s.email       = ["will@happyfuncorp.com"]
  s.homepage    = "https://github.com/sublimeguile/dateslices"
  s.summary     = "A Rails 4 ActiveRecord plugin that adds group_by_day, group_by_month, etc."
  s.description = "A Rails 4 ActiveRecord plugin that adds group_by_day, group_by_month, etc. Not timezone aware, but supports sqlite."
  s.license     = "MIT"

  s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.rdoc"]

  s.add_dependency "rails", "~> 4.1.4"

  s.add_development_dependency "sqlite3"
  s.add_development_dependency "pg"
  s.add_development_dependency "mysql"
  s.add_development_dependency "rspec-rails"
  s.add_development_dependency "rspec-autotest"
  s.add_development_dependency "autotest-rails"
end
```

Update gemspec to support Rails 4.x
user
```ruby
$:.push File.expand_path("../lib", __FILE__)

# Maintain your gem's version:
require "dateslices/version"

# Describe your gem and declare its dependencies:
Gem::Specification.new do |s|
  s.name        = "dateslices"
  s.version     = Dateslices::VERSION
  s.authors     = ["Will Schenk"]
  s.email       = ["will@happyfuncorp.com"]
  s.homepage    = "https://github.com/sublimeguile/dateslices"
  s.summary     = "A Rails 4 ActiveRecord plugin that adds group_by_day, group_by_month, etc."
  s.description = "A Rails 4 ActiveRecord plugin that adds group_by_day, group_by_month, etc. Not timezone aware, but supports sqlite."
  s.license     = "MIT"

  s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.rdoc"]

  s.add_dependency "rails", "~> 4.0"

  s.add_development_dependency "sqlite3"
  s.add_development_dependency "pg"
  s.add_development_dependency "mysql"
  s.add_development_dependency "rspec-rails"
  s.add_development_dependency "rspec-autotest"
  s.add_development_dependency "autotest-rails"
end
```
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