If you’re like many investors these days, you’re warily eyeing your portfolio, wondering where the next dividend cut will come from.

Fear of dividend cuts is reasonable, even if you hold the Dividend Aristocrats—the 63 S&P 500 firms that have raised their payouts for 25 years (or more). This club includes well-known names like McDonald’s (MCD), Lowe’s (LOW), Kimberly-Clark (KMB) and Procter & Gamble (PG), as well as less familiar firms, like Sysco (SYY), VF Corporation (VFC) and Linde (LIN).

For many folks, the Aristocrats are sacred cows. But the crisis will inevitably force some of these companies to cut payouts in the weeks and months ahead. And since many dividend investors depend on these firms’ dividends, a serious selloff could follow.