Composer Memory Limits error

hi guys, i got this error when i want install this lib.

[foodyolr@lsv3 www]$ composer require mpdf/mpdf
Using version ^8.0 for mpdf/mpdf
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)

Fatal error: Allowed memory size of 1610612736 bytes exhausted (tried to allocate 4096 bytes) in phar:///opt/cpanel/composer/bin/composer/src/Composer/DependencyResolver/Solver.php on line 223