Vagrant + Chef + hostname

I am pretty new using Vagrant and Chef. I am trying to change the hostname of my vagrant image with the help of a chef. For some reason I cannot see the changed hostname when I dovagrant ssh

Obviously I must be missing something. Could you point me in the right direction?

Here is my Cheffile

site "http://community.opscode.com/api/v1"

cookbook 'apt'
cookbook 'build-essential'
cookbook 'hostname'

      

        
        
        
      

    

Here is my Vagrant

file

# -*- mode: ruby -*-
# vi: set ft=ruby :

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  # Use Ubuntu 14.04 Trusty Tahr 64-bit as our operating system
  config.vm.box = "ubuntu/trusty64"

  # Configurate the virtual machine to use 2GB of RAM
  config.vm.provider :virtualbox do |vb|
    vb.customize ["modifyvm", :id, "--memory", "2048"]
  end

  # Forward the Rails server default port to the host
  # config.vm.network :forwarded_port, guest: 3000, host: 3000

  # Use Chef Solo to provision our virtual machine
  config.vm.provision :chef_solo do |chef|
    chef.cookbooks_path = ["cookbooks", "site-cookbooks"]

    chef.add_recipe "apt"
    chef.add_recipe "hostname"

    # Install Ruby 2.1.2 and Bundler
    # Set an empty root password for MySQL to make things simple
    chef.json = {
      hostname: {
        set_fqdn: 'Olympus'
      }
    }
  end
end