I'm having a small issue since upgrading to 4.1.

This used to work:
Cache::put('something', 'a value', 0.25);
Now only this works:
Cache::put('something', 'a value', 1);

I also tried passing in a carbon object

Passing in this works:
$expiresAt = \Carbon\Carbon::now()->addMinutes(1);
Passing in this doesn't:
$expiresAt = \Carbon\Carbon::now()->addSeconds(10);

I'm calculating a price based on external api's from other websites and I want to cache this value for about 15 seconds. I thought putting this value in cache for that time would be the best option.