Updating single value inside json on postgres

query.sql

/*
	-> Supposing there's a table called 'sel_collections' and a column 'info' with the following format: 
	{ "total_pictures": 2, "total_size": 100 }

	-> After making the command below, the value inside this column will be:
	{ "total_pictures": 3, "total_size": 100 }
*/

UPDATE
	sel_collections
SET
	info = jsonb_set(info, '{total_pictures}', (COALESCE(info->>'total_pictures','0')::int + 1)::text::jsonb)
WHERE
	id=106;