Update Composer

Updating Composer for PHP involves ensuring that you have the latest version of the Composer tool, which brings new features, improvements, and bug fixes.

Updating Composer regularly ensures that you can take advantage of the latest enhancements and maintain compatibility with the evolving PHP ecosystem.

This article explains how to update Composer on VPS and Dedicated servers.

Related Articles

Install Composer
Downgrade Composer
Composer Requires PHP Version Error

Update Composer

IMPORTANT: This solution will require root access. If this needs to be obtained, follow the guide on requesting root access.

1. Access your server via SSH as the root user or using the Terminal in Root WHM
2. Using su, switch users to your primary cPanel username
   EXAMPLE: If your cPanel user was userna5 then your command would be:

   su userna5

3. Confirm the current version by running the following command

   composer -V

   CAUTION: If you check the version as root, you will get an error showing not to run Composer as root.
   
4. Exit the cPanel user by running the following command

   exit

5. Run the following to ensure Composer is up to date

   composer self-update

   EXAMPLE: 

   root@VPSID [~]# composer self-update
   Upgrading to version 2.5.4 (stable channel).
   
   Use composer self-update --rollback to return to version 2.4.4