diff --git a/README.md b/README.md
index 4f4421b2..5e16feb2 100644
--- a/README.md
+++ b/README.md
@@ -424,6 +424,7 @@ Read [CONTRIBUTING.md](/CONTRIBUTING.md) to learn how to add your own repos.
 * [gernb/AdventOfCode2020](https://github.com/gernb/AdventOfCode2020) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2020--12--02-orange)
 * [juanj/AdventOfCode2020](https://github.com/juanj/AdventOfCode2020) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2020--12--01-orange)
 * [lighthouse16/AdventCode2020](https://github.com/lighthouse16/AdventCode2020) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2020--12--02-orange)
+* [UMPUSTEN/AoC-2020](https://github.com/UMPUSTEN/AoC-2020) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2020--12--02-orange)
 
 #### TypeScript