Lawmakers of Cuba have unanimously approved a reviewed draft of a new constitution that retains the island’s one-party socialist system but reflects its socio-economic opening since the fall of the Soviet Union.

The draft new constitution, which has 229 articles and will replace a Cold War era one, will maintain the Communist Party as the country’s guiding force and the state’s dominance of the economy, according to state-run media.

A copy has not yet been distributed to the public.