diff --git a/morph/grid/local/README.rst b/morph/grid/local/README.rst
index c2f48cfaac3b3b391d23f396a8bddb7af1023e57..2297816d2e5c2faddb8b889a850d2e97ee0475c9 100644
--- a/morph/grid/local/README.rst
+++ b/morph/grid/local/README.rst
@@ -26,17 +26,11 @@ One possible way to do it in NixOS:
 Pre-Vagrant 2.2.16: Get Vagrant with the required fixes for NixOS guests
 ````````````````````````````````````````````````````````````````````````
 
-The Vagrant nixos-guest template `received a critical update on 2021-03-08 <https://github.com/hashicorp/vagrant/commit/990d94ed9d0b3092e855bc1bb9deeeb7aa7792cf>`_ which is going to be in version 2.2.16 once it's out.
+The Vagrant nixos-guest template `received a critical update on 2021-03-08 <https://github.com/hashicorp/vagrant/commit/990d94ed9d0b3092e855bc1bb9deeeb7aa7792cf>`_ which came out with Vagrant version 2.2.16.
 
-Retrieve and use the latest Vagrant development version locally::
+If you run an older Nixpkgs, retrieve and use the latest Vagrant development version like so::
 
-  git clone ssh://git@github.com/hashicorp/vagrant.git
-  cd vagrant/
-  nix-shell -p gcc gnumake git gnutar curl ruby
-  bundle install
-  bundle --binstubs exec
-  cd exec/
-  export PATH=`pwd`:$PATH
+  NIX_PATH=nixpkgs=https://github.com/NixOS/nixpkgs/archive/refs/heads/master.tar.gz nix-shell -p vagrant
 
 
 Use the local development environment