Advice please :(

I need advice!! My husband is in the military and he is leaving soon for about two weeks. (Definitely not as long as what we are used to, but it's the first time that he is leaving since the pandemic started.) My parents usually help me when he's gone and they love seeing their only granddaughter. The problem is, I have only seen them from a social distance because I am super paranoid since my dad has heart disease and of course they are both over 60. I can definitely handle two weeks without help, but they insist it's fine to come help me. What would you do? I'm so scared they would get sick and it would be all my fault ...