Cursor Mysql update row by row

cursor_update.sql

DELIMITER $$
CREATE PROCEDURE fixVersionAggregate ()
BEGIN
	DECLARE finished INTEGER DEFAULT 0;
	DECLARE evId BIGINT DEFAULT 0;
    DECLARE evVersion INT DEFAULT 0;

	-- declare cursor for 
	DEClARE curEvent
		CURSOR FOR 
			SELECT id, aggregate_version FROM stored_events
		WHERE aggregate_uuid = '894fbbb8-d9b7-48ce-b6ce-1b0ab9cbd843'
		AND aggregate_version >= 40;

	-- declare NOT FOUND handler
	DECLARE CONTINUE HANDLER 
        FOR NOT FOUND SET finished = 1;

	OPEN curEvent;

	getEvent: LOOP
		FETCH curEvent INTO evId, evVersion;
		IF finished = 1 THEN 
			LEAVE getEvent;
		END IF;
		-- build email list
		UPDATE stored_events
		SET aggregate_version = (evVersion - 1)
		WHERE id = evId;
	END LOOP getEvent;
	CLOSE curEvent;

END$$
DELIMITER ;

CALL fixVersionAggregate();