As the archbishopric of Vrhbosna (Sarajevo) announced on Thursday, the archbishop emeritus has been given the green light to travel to Rome following medical consultation.
Puljic had originally ruled out travelling to Rome for health reasons.
However, he will not be able to attend the funeral service and burial of Pope Francis on Saturday due to time constraints. His journey to Rome is planned for this week.
Puljic is the longest-serving cardinal entitled to vote in the current College of Cardinals. He already took part in the elections of Benedict XVI and Francis in 2005 and 2013. He will be 80 years old on 8 September.
Following the cancellation of the Spanish Cardinal Antonio Cañizares Llovera (79) due to illness, there are currently 134 cardinals eligible to vote. Only those under the age of 80 are eligible to vote.