The second vote was called for by M5S founder Beppe Grillo, who opposes the changes.
He called for the redo after objecting to how the first ballot was held at a ‘constituent assembly’ last month.
Grillo is being stripped of his role as the populist party’s ‘guarantor’ under the reform of the statute.
The changes also scrap the movement’s two-term limit for its elected representatives, make it possible to change its symbol, and place it firmly in the progressive camp.
“The M5S has voted again en masse,” said Conte.
“This is the disruptive wave of a community that knows no limits or obstacles, in which everyone really counts.
“Now we turn a page.”
Comic-and-blogger-cum-politician Grillo has said that M5S is “very dead” (stramorto) after the changes to its statute and has hinted that he will start a new group.
ANSA