The Steam Packet company says it's contacting passengers about more changes to sailings because of work at the Liverpool Ferry Terminal.
Contractors have been carrying out work at the Princes Half-Tide Dock facility since the start of the month.
As a result, weekend sailings to Merseyside have been redirected to Heysham, with replacement coaches laid on for travellers.
The work will affect next weekend's sailings on Saturday, November 15 and Sunday, November 16.
Can people on benefits still get support if they're treated privately?
Manx student speaks in House of Commons
Below average rainfall in October despite unsettled weather
What's the government doing to encourage people to buy Manx produce?
Debate over MiCards to continue in Keys next week
Wedding dress exhibition this weekend
Manx Telecom broadband may be briefly disrupted next week
Minor Injuries closures have 'no effect' on Noble's A&E, says minister