Can I claim an adult dependent with social security benefits?

I've been claiming my mother as a dependent on my taxes. She was was recently approved for social security survivor benefits and has no other income. Will I still be able to claim her as a dependent or will her social security benefits potentially disqualify her as my dependent if it exceeds the gross income cap for qualifying dependents?

My interpretation is that I can still claim her because she has no other income and wouldn't be filing taxes.