The Green Party is urging Justice Minister Andrew Little to adopt a Greens members' bill which would ban foreign donations to political parties.
Greens electoral reform spokeswoman Golriz Ghahraman is introducing a bill which she said would "stop unfair influence and potential corruption in politics".
As well as cracking down on foreign donations, the bill would also overturn a ban on prisoner voting, enable Māori to change roll types at any time and lower the MMP threshold to 4 per cent.
Although New Zealand has a strong democratic system, Ghahraman said there is "definitely room for improvement".
"The bill seeks to stop unfair influence and potential corruption in politics," she said.