ExecValueVariable DataType for Execute SQL Task

I have some large tables that overflow an Int32 so I'm trying to use Int64 for an ExecValueVariable variable. When I attempt this (or another type like Int16) I get an error that the variables differs from the current variable type.

Is there a way to change the ExecValueVariable datatype for the Execute SQL task or is it hardcoded as Int32?

Thanks,
Emre