diff --git a/README.md b/README.md
index 9c638ff4..50fbb1b5 100644
--- a/README.md
+++ b/README.md
@@ -422,6 +422,7 @@ Read [CONTRIBUTING.md](/CONTRIBUTING.md) to learn how to add your own repos.
 * [breakthatbass/advent_of_code2021](https://github.com/breakthatbass/advent_of_code2021) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
 * [cobanov/advent-of-code](https://github.com/cobanov/advent-of-code) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
 * [codemicro/adventOfCode](https://github.com/codemicro/adventOfCode) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
+* [ernestoarbitrio/AoC2021](https://github.com/ernestoarbitrio/AoC2021) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
 * [grigoresc/adventofcode.2021](https://github.com/grigoresc/adventofcode.2021) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
 * [jopein/aoc2021](https://github.com/jopein/aoc2021) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
 * [k2bd/advent-of-code](https://github.com/k2bd/advent-of-code) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
@@ -432,9 +433,9 @@ Read [CONTRIBUTING.md](/CONTRIBUTING.md) to learn how to add your own repos.
 * [nitekat1124/advent-of-code-2021](https://github.com/nitekat1124/advent-of-code-2021) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
 * [novoselov-ab/adventofcode-2021-python](https://github.com/novoselov-ab/adventofcode-2021-python) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
 * [orfeasa/advent-of-code-2021](https://github.com/orfeasa/advent-of-code-2021) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
-* [smetanin-av/advent_of_code](https://github.com/smetanin-av/advent_of_code) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
-* [ernestoarbitrio/AoC2021](https://github.com/ernestoarbitrio/AoC2021) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
 * [rosscon/rosscon_advent_of_code](https://github.com/rosscon/rosscon_advent_of_code) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
+* [smetanin-av/advent_of_code](https://github.com/smetanin-av/advent_of_code) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2021--12--02-brightgreen)
+* [widdin/advent-of-code]
 
 #### R