put the brakes on
US /pʊt ðə breɪks ɑn/
UK /pʊt ðə breɪks ɑn/

1.
to slow down or stop an activity or process
:
•
We need to put the brakes on this project until we get more funding.
•
The government decided to put the brakes on new spending.
to slow down or stop an activity or process