The amendments also change the balance of power, increasing the role of the State Council advisory body, and giving both parliament and the president additional instruments of authority.
He also announced during a televised address to the nation that the government doesn't want Russians, except those working in essential sectors, to go to work next week. He said stores, pharmacies and banks will stay open.
"Health, life and safety of the people is an absolute priority for us," Putin said.
Russian authorities reported 163 more virus cases in the country since the day before. That marked a significantly bigger daily increase from previous days, when the number of new infections grew only by several dozens.