Will I need to file taxes to receive 2021 stimulus, if all my 2020 income was from SSI (not SSA, social security) and a $1200 Stimulus check?

In 2020, I received
- Supplemental Security Income SSI. (Please note: Not Social Security Benefits nor SSA).  
- Stimulus check of $1200.
That's all.

In 2021, will I need to file taxes to get 2021 stimulus?

Thanks.