Do Bane/Bless apply to death saving throws?

Possibly related.

The text of Bane reads:

Whenever a target […] makes an attack roll or saving throw before the spell ends, the target must roll a d4 and subtract the number rolled from the attack roll or saving throw.

Emphasis mine. Bless reads similarly. Based on this text, and the linked question, am I right to assume that these spells apply to death saving throws?