An image sensor package may include: a package substrate including a chip attachment area on an upper surface thereof, a pad area having a plurality of pads around the chip attachment area, and a holder attachment area at an outside of the pad area, wherein an upper surface of the holder attachment area is at a lower level than an upper surface of the pad area; an image sensor chip mounted on the chip attachment area of the package substrate; a transparent member above the package substrate and configured to cover the image sensor chip; and a holder on the holder attachment area of the package substrate and configured to fix the transparent member.