Doorbell camera constantly sends motion alerts

My front doorbell camera has been sending MANY motion alerts over the past few weeks.  It mostly seems to happen at night, but when I look, nothing is there.  The doorbell is located on an adjacent wall to the side of my front door, so it does not actually look out towards the street.  It only sees the wall on the opposite side of the front door.  Anything that could trigger motion would have to be right there in a 3' x 3' square in front of the door.  One morning I woke up to at least 25-30 notifications between 11 PM and 6 AM for motion detected.  It's getting pretty ridiculous.  Would a firmware update remedy this?  It's currently showing v2.6.2.171 for my doorbell camera.