Error Installing

[HanyMostafa]

When I run the command: composer require jazmy/jaz-form-builder

I got this error

You are using an outdated version of Composer. Composer 2.0 is about to be released and the older 1.x releases will self-u
pdate directly to it once it is released. To avoid surprises update now to the latest 1.x version which will prompt you before self-updating to 2.x.

then I got this

[InvalidArgumentException]
Could not find a version of package jazmy/jaz-form-builder matching your minimum-stability (stable). Require it with an explicit version constraint allowing its desired stability.

Please advise me what to do?

[nanotanto]

try it
composer require jazmy/jaz-form-builder:dev-master