Putin made the announcement to journalists in Beijing on April 26 after meeting Aliyev on the sidelines of China’s Belt and Road forum – an initiative aimed at building trade and transportation infrastructure that links China with South and Central Asia, Europe, and Africa.
"We agreed to hold another Russian-Azerbaijani-Iranian summit in Russia in August," Putin said.
The last meeting between the three leaders was held in Tehran in November 2017.
In August 2016, the three presidents held their first key tripartite summit in Azerbaijan’s capital, Baku.
They discussed ways of enhancing cooperation in the areas of commerce, energy, communications, transport and transit.
The three presidents also exchanged views on environmental issues and the fight against terrorism.