(someone) fall behind the times

Translations
(кто-то) отставать от времени
If you don't keep up with technology, you might fall behind the times.
Если не следить за технологиями, можно отстать от времени.
Definitions
To 'fall behind the times' means that someone is not keeping up with current trends, ideas, technology, or ways of thinking, and is considered outdated or old-fashioned.
Words
fall

verb
падать
fall behind

verb
отставать
behind

adverb
позади