The duo are connected to the Seagulls till the summer of 2024.
Brighton set Steven Alzate and Aaron Connolly have each agreed new four-year agreements with the Premier League club.
Colombia midfielder Alzate and Republic of Ireland forward Connolly got into the first team at the Amex Arena this season under Albion boss Graham Potter
The duo, who each made their international launchings this term, are now connected to the Seagulls till the summer of 2024.
Alzate, who was signed from Leyton Orient in 2017, informed Brighton’s website: “The manager has been important for me. He provided me the chance to make my debut and to kick on from there.
“When I made my debut I had to prove myself, but he has given me the opportunity to make that impression and I think I have taken it with both hands.”
Alzate, 21, made 19 Premier League appearances as Albion ended up 15 th, although his season was cut by groin surgical treatment.
Connolly scored 3 times in 24 top-flight appearances, declaring Sunday’s winner at Burnley having netted two times in a 3-0 win over Tottenham in October.
“It’s fantastic the club have given me this kind of security because it means I can push on now for the next four years. It will help me relax and enjoy my football even more,” stated the 20- year-old.
“This season has been unbelievable at times and obviously the Tottenham game when I scored twice was a big moment for me.”