A camera module includes a lens, a lens barrel, a lens holder, a circuit board, an image sensor, and an elastic member. The lens barrel receives the lens therein and includes a flange protruding over the lens barrel. The lens holder is affixed to the circuit board to receive the image sensor therein. The elastic member is disposed between the lens barrel and the lens holder. A rim is formed on the lens holder. The elastic member has one end contacting the rim of the lens holder and the opposite end contacting the flange. The elastic member biases the lens barrel against the image sensor.