The Greek government has upgraded slightly its forecast for economic growth next year, according to its final 2018 budget, tabled late Tuesday.

The government is expecting the economy to grow by 2.5 percent in 2018, fractionally higher than the 2.4 percent contained in the draft budget last month. 

And the country's public finances will be in the black, with Athens pencilling in a budget surplus equivalent to 3.8 percent of gross domestic product (GDP), excluding debt payments, the finance ministry said. 

The target mandated by Greece's creditors is 3.5 percent, up from 1.75 percent this year.

The Greek parliament is scheduled to vote on the budget on December 22.