Issue after shrinking database

Hi All, I am running Version 8 with a community license. Yesterday i used the SHRINKDATABASE command to clean up the index and log files that were overtaxing the SQL 2012 database. It shrank OUTSYSTEMS Database from 10GB to 2GB. I now have the issue of the Unused Space on the OUTSYSTEMS DATABASE being too small (8.55MB) I need to increase this so that my web app operates smoothly again. Any ideas on how to do this? Thanks in advance.