rest on your laurels

US /rɛst ɑn yʊər ˈlɔrəlz/
UK /rɛst ɑn yʊər ˈlɔrəlz/
"rest on your laurels" picture
1.

to be satisfied with your past achievements and not to make any further effort

:
After winning the championship, the team decided not to rest on their laurels and started training for the next season.
He's a talented artist, but he tends to rest on his laurels instead of exploring new styles.