Should the minimum wage be tied to some economic metric?

July 24, 2021 was the 12th anniversary of the last increase in the US federal minimum wage. At that time it was raised to $7.25 an hour. According to this article in Business Insider, anyone who works for minimum wage now is making 21% less than they would when minimum wage was last raised. So, since Congress cannot be entrusted to raise the minimum wage when necessary, IMHO it should be time to some economic metric. Which one? Inflation? Cost of living? Productivity? Median worker pay? Or something else?