Stop in for a cup of coffee

How do you make a fence 4ft taller?
Kinda bad time of the year for fence work...
Rednecked. It’s a small yard, 30x 30 fenced in. Previous renters used 4x4 square posts, so I just added 4 foot 4x4 posts to it, gussets and braced. Then added 4 feet of wire fence to it. Wired the top and bottoms together. It’ll get trimmed in half when it’s warmer and then this spring, replaced with 6 feet chain link. but is -5 right now with the windchill so this will have to do for now.