Too few arguments to function Drupal\tinypng\TinyPng::__construct()

I have Drupal version 8.9.13. I just upgraded the module to 8.x-1.2. I'm getting the error

ArgumentCountError: Too few arguments to function Drupal\tinypng\TinyPng::__construct(), 2 passed in */core/lib/Drupal/Component/DependencyInjection/Container.php on line 259 and exactly 3 expected in Drupal\tinypng\TinyPng->__construct() (line 74 of */modules/contrib/tinypng/src/TinyPng.php)

I think it's to do with the FileUrlGeneratorInterface class missing. Is that a class that's only in Drupal 9? I'm using Drupal 8 and can't upgrade for a while yet.