Applescript to Access Calendar

Hello all, I am creating an applescript to read my iCal events and find out when the next event is. It works fine except for at the beginnning of the program, it asks for permision to access the calendar. I looked into it, and found out to go into settings/security and allow it through to the calendar as you can see below. After I do that, it works well for about a day, but then, it starts asking me to allow it through again. Is there a way to permanantly allow it? An addition to the code or just a setting change would be great.

As always, any help is appreciated.

Thanks,

Ryan Siebecker