Update Stuck at 20%

Trying to update from 2.1.8 to 2.1.9. The update has been stuck at 20% for an hour. Is there anything I can do to get past the 20%?

Just in case somebody else has this issue on shared hosting I found a solution.

I changed php.ini and the update installed (after awhile)

upload_max_filesize = 32M
post_max_size = 48M
memory_limit = 256M
max_execution_time = 600
max_input_vars = 1000
max_input_time = 400