Minecraft packs won’t update

So I have packs that need to be updated and all but one of them are by the official Minecraft, an example of the packs I have are the Steven universe mashup and the Nightmare before Christmas pack.... the packs that need to be updated have the blue exclamation point on them and everything but when I click “update” (I have tried both clicking it once and spamming the button) it doesn’t do anything... so how do I update my packs? 
Ps I looked for this issue and didn’t see it anywhere but sorry if it has already been reported and I didn’t see it.