The Steam Packet Company says it's making changes to its autumn sailing schedule to allow for works at the Liverpool ferry terminal.
It says the 'upgrade' is needed to fix issues with berthing the Manxman which caused disruption to last year's winter sailings.
To minimise disruption, the SPC says it will aim to keep sailings as close to the original schedule as possible.
However, crossings to and from Merseyside on Saturday, November 1 and Sunday, November 2 will instead operate to Heysham.
The company's arranging a coach transfers from the Lancashire port to Liverpool for any passengers who need it that weekend.
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