diff --git a/2021/README.md b/2021/README.md
index 2763bac..da8b5ae 100644
--- a/2021/README.md
+++ b/2021/README.md
@@ -22,3 +22,4 @@
 | [Day 12](https://adventofcode.com/2021/day/12) | [435.8005 ms](./solutions/day_12.py)           | [167.7333 ms](./solutions/day_12.py)           |
 | [Day 13](https://adventofcode.com/2021/day/13) | [2.4059 ms](./solutions/day_13.py)             | [1.3246 ms](./solutions/day_13.py)             |
 | [Day 14](https://adventofcode.com/2021/day/14) | [2.5086 ms](./solutions/day_14.py)             | [1.3790 ms](./solutions/day_14.py)             |
+| [Day 15](https://adventofcode.com/2021/day/15) | [1.3371 s](./solutions/day_15.py)              | [594.4693 ms](./solutions/day_15.py)           |