Using Zumero to sync android application, change location of cache file

I am using Zumero to sync to a MS SQL server with my Android application, I have my SQLite db stored on the SD Card. When I run the sync it creates a cache file in the internal storage before updating the SQLite db. This is causing a internal storage issue and the operating system is deleting the cache file before updating the database due to running out of storage space. How can I force the app to use the SD Card for the cache file?