diff --git a/README.md b/README.md
index 760332b6..7e38e76a 100644
--- a/README.md
+++ b/README.md
@@ -317,6 +317,7 @@ Read [CONTRIBUTING.md](/.github/CONTRIBUTING.md) to learn how to add your own re
 * [arcogelderblom/AdventOfCode](https://github.com/arcogelderblom/AdventOfCode) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2025--12--04-brightgreen)
 * [bg2b/aoc25](https://github.com/bg2b/aoc25) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2025--12--04-brightgreen)
 * [jromero132/advent-of-code](https://github.com/jromero132/advent-of-code) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2025--12--04-brightgreen)
+* [marcelweikum/advent-of-code]
 
 #### C3