No space on device error - no change since last deploy

Hi there -- Just redeployed my app with no major changes (new packages, etc). I'm getting a "no space left on device" error during the build. I figured it was some free tier issue so I upgraded to the developer tier...still no luck.

Any way to fix this? Looks like my slug size is only around 30mb, however I am installing wkhtmltopdf in the container, so that might add up?

Not sure because it was running fine earlier...just added a few lines of code.

Cheers!

show screenshots of the error please