Shoppers and pedestrians walk along Khreshchatyk street at night in Kyiv, Ukraine, on Monday, Dec. 18, 2023. Photographer: Andrew Kravchenko/Bloomberg via Getty Images via Getty Image in Kyiv, Ukraine, on Monday, Dec. 18, 2023. With more than $110 billion in assistance mired in political disputes in Washington and Brussels, how long Kyiv will be able to hold back Russian forces and defend Ukraine's cities, power plants and ports against missile attacks is increasingly in question. Photographer: Andrew Kravchenko/Bloomberg via Getty Images 
Ukraine has recognised the ICC's jurisdiction in the past, but full membership of the court is a key part of Ukraine's quest to eventually join the European Union.
It would also allow authorities "to more effectively punish" suspected Russian war criminals amid Moscow's war on Ukraine, according to lawmaker Oleksiy Honcharenko.
The ICC has issued arrest warrants for Russian officials including President Vladimir Putin and ex-defence minister Sergei Shoigu for their roles in alleged crimes against Ukrainian civilians. Russia has denied targeting civilians.
"Ukraine has already worked effectively with the ICC to ensure comprehensive accountability for all Russian atrocities committed in the course of Russian aggression," Ukrainian Foreign Minister Dmytro Kuleba wrote on X.
"This work will now be even more effective."
In an interview with Reuters in June, senior presidential adviser Iryna Mudra said the ratification process had been held up because of a "disinformation campaign" falsely suggesting Ukrainian troops would be more vulnerable to prosecution.
Kuleba also described Kyiv's bid for ICC membership as "a long journey full of challenges, myths, and fears. None of them have been true."
Lawmaker Yaroslav Zhelezniak said deputies had been presented with letters of support from Ukraine's General Staff and the head of Kyiv's military intelligence before voting.
(Reporting by Dan Peleschuk; Editing by Alex Richardson and Angus MacSwan)