Johnson had been under investigation by a parliamentary inquiry looking into whether he misled the House of Commons about lockdown-breaking parties in Downing Street during the COVID-19 pandemic
That figure led to his critics branding it a damaging outcome for his long-term future as the party leader, while his supporters point out he has the backing of a majority of his party.
The vote, however, was a blow to Johnson, with 41% of his lawmakers casting ballots against his leadership after months of scandals and gaffes that have raised questions over his authority to govern Britain.