The price for a National Lottery ticket is set to rise next month by a euro, while a standard two-line ticket is set to rise from €3 to €4.
Those who want to play Lotto Plus will now have to fork out €5.
This is the first price increase in nine years and comes as two new numbers are added to the draw which will now total 47.
This will mean that the jackpot will be harder to win.
The odds of picking six winning numbers to scoop the jackpot at the moment are just over 8million-to-one.
Under the new measures, these odds will now increase to 10.7m-to-one.
The National Lottery was taken over last year by a private company.
Premier Lotteries Ireland CEO, Dermot Griffin, said that the new Lottery will result in more prizes and bigger jackpots for customers.
“Bigger Better Lotto will deliver a more exciting game and bigger jackpots for our players, which will generate more funds for good causes,” he said.
Under the new rules, which will come into effect on September 3, a number of the cash prizes will be increased.
This includes an increased win from €25,000 to €100,000 (average) for a Match 5 plus Bonus number and a prize for matching two Lotto numbers plus the Bonus number.
The National Lottery's Agent Council said that they support the changes.
“Time does not stand still, Lotto constantly needs revision and revitalising," they said.