Chaima Issa and Lazahr Akremi have been in jail for five months.

They were among a group of around 20 leading figures arrested in February on charges of plotting against the state.

Lawyers said the others had their appeals rejected.

President Saied has concentrated power in his hands since he suspended Tunisia's parliament two years ago.

His opponents accuse him of crushing the only democracy to emerge from the revolts of the Arab Spring in 2011.