Crib rails ☹️

What can I do my son moves so much in his sleep and gets his limbs stuck in the crib railing and it’s so scary to see that every time I go to get him. My husband also concerned about this. I know the spaces are regulated so he won’t get hurt but still is there anyyytjing I can do? Are the mesh liners still unsafe now that he is six month? Please no shaming Im just looking for a solution. 😐