Opening hours at Yatton Library are set to more than double once a swipecard entry system is introduced.
The library, in High Street, will be shut for eight days while the technology is installed.
The new initiative, which has already been rolled out in Portishead, will see users register for a card which will allow them entry after normal opening hours.
The exact hours the system will be in operation are yet to be finalised by North Somerset Council.
But it is confident the change will allow more people to access the library at weekends and in evenings.
The idea has been planned for some times and comes following an overhaul of the centre last summer.
The council hopes to launch the extended access programme in February.
Yatton Library will be shut from January 22-26 and February 5-7 while the entry system is installed.
More than 480 UK libraries use similar systems already.
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