Vmware_fusion provider resize disk

I have this set in my vagrantfile: config.disksize.size = '120GB' but for some reason when I run df -H I’m always getting a disk with 67GB it looks like:

Filesystem                    Size  Used Avail Use% Mounted on
udev                           13G     0   13G   0% /dev
tmpfs                         2.5G  9.3M  2.5G   1% /run
/dev/mapper/vagrant--vg-root   67G   31G   33G  49% /
tmpfs                          13G     0   13G   0% /dev/shm
tmpfs                         5.3M     0  5.3M   0% /run/lock
tmpfs                          13G     0   13G   0% /sys/fs/cgroup
tmpfs                         2.5G     0  2.5G   0% /run/user/1000

Is there a way to increase the size of the disk? I’ve seen vagrant-disksize but that seems to only work with VirtualBox. I also tried the new experimental disk feature but I got an error message both when trying to resize and trying to provision from scratch.