It was originally enacted in November 2015 following a suicide bomb attack on a bus.
This though came after 38 people, including 30 British holidaymakers, were killed by a gunman in the tourist resort of Sousse.
The extension was confirmed by Tunisian president Beji Caid Essebsi on Wednesday (November 7).
A statement from the president’s office said the move related to the “security situation” in the country.
The Foreign and Commonwealth Office (FCO) updated its guidance on Wednesday.
