Requiring "RMagick" is deprecated. Use "rmagick" instead.FactoryGirl

When I create an object via FactoryGirl and Faker, shell show me an error

[1] pry(main)> FactoryGirl.create(:company)
[DEPRECATION] requiring "RMagick" is deprecated. Use "rmagick" instead

but when I create object in development db - it's ok

there is factory

  factory :company do
    title Faker::Company.name
    image Faker::Avatar.image("my-own-slug", "200x200")
  end 

how fix?