Yes! Better dig it up now and make sure it's not expired. :)
As of January 26, 2021, travelers are required to get a viral test within 3 days before their flight to the US. You will need to provide written documentation of your test results to the airline or documentation of having recovered from COVID-19, as well as a signed attestation letter.
Onsite viral testing services are offered at Garza Blanca, so that you can easily comply with the new requirements. You'll be able to schedule you test upon arrival.