diff --git a/Vagrantfile b/Vagrantfile
index 9a359c5..8a17220 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -82,13 +82,8 @@ Vagrant.configure(2) do |config|
   #   sudo apt-get install -y apache2
   # SHELL
 
-  # Install latest Chef via Omnibus
-  # Needs `vagrant plugin install vagrant-omnibus`
-  if Vagrant.has_plugin?("vagrant-omnibus")
-    config.omnibus.chef_version = "12.20.3"
-  end
-
   config.vm.provision :chef_zero do |chef|
+    chef.version                            = '12.21.3'
     chef.cookbooks_path                     = ['cookbooks', 'site-cookbooks']
     chef.data_bags_path                     = 'data_bags'
     chef.roles_path                         = 'roles'