Issue with libraries with hyphens "-" in the name

I have a project with "cv2" and "scikit-learn" but when i used the command pipreqs . --force --mode no-pin It was giving the requirements.txt as

noise numpy opencv_python Pillow scikit_learn scipy skimage torch torchvision tqdm

As you can see the opencv-python is written as opencv_python (which is in correct manner "opencv-python") and more of the bad one is "skimage" which is really "scikit-image".

If I am doing something wrong please guide me.