diff --git a/docs/en/03_Upgrading/index.md b/docs/en/03_Upgrading/index.md
index df06f3e76..87f18469a 100644
--- a/docs/en/03_Upgrading/index.md
+++ b/docs/en/03_Upgrading/index.md
@@ -92,7 +92,7 @@ through the [Step 1 - Upgrade your dependencies](#step1) section.
 
 ### Install the upgrader tool (optional)
 Using the upgrader is not mandatory, but it can speed up the process.
-Although SilverStripe 4 can run in both PHP 5.6 and PHP 7, the upgrader itself requires PHP 7.
+Although SilverStripe 4 can run in both PHP 5.6 and PHP 7, the upgrader itself requires PHP 7.1.
 To install the upgrader globally run this command.
 
 ```bash
@@ -119,6 +119,16 @@ You can run `upgrade-code help` to get more information about the upgrader or `u
 Sample upgrader commands in this guide assume your working directory is the root of your SilverStripe project. You'll need to use the `--root-dir` flag if that's not the case.
 </div>
 
+#### Install the upgrader as a PHAR executable
+
+The upgrader is also available as a phar executable. This can be helpful if installing the upgrader globally through composer conflicts with other libraries.
+
+To install the PHAR executable:
+
+1. [Download the upgrader as a PHAR executable](releases/download/1.2.1/upgrade-code.phar) or `wget https://github.com/silverstripe/silverstripe-upgrader/releases/download/1.2.1/upgrade-code.phar`
+2. Make the file executable `chmod +x upgrade-code.phar`
+3. Move the file to a folder in your path, for example `sudo mv upgrade-code.phar /usr/local/bin/upgrade-code` 
+
 ### Running all the upgrader commands in this guide in on line
 
 The upgrader comes with an `all` command. This command will attempt to run all the upgrader commands in the same order as this guide. This is unlikely to work on your first try, but can be a good way to get started without going through this entire guide.