diff --git a/NOTICE.md b/NOTICE.md
index 73872be..8d22280 100644
--- a/NOTICE.md
+++ b/NOTICE.md
@@ -25,4 +25,6 @@ This project uses the following external assets:
 | `./entities/imp_drag.wav` | https://freesound.org/people/JarredGibb/sounds/217273/ | CC0 |
 | `./temp/demon_dying.wav` | https://freesound.org/people/THE_bizniss/sounds/37823/ | Attribution 3 |
 | `./entities/coin.ogg` | https://freesound.org/people/forrisday/sounds/214509/ | Attribution 4 |
+| `./entities/barn_coin_enter.ogg` | https://freesound.org/people/Nawer/sounds/711784/ | Attribution 4 |
+| `./entities/barn_coin_drop.ogg` | https://freesound.org/people/Nawer/sounds/711784/ | Attribution 4 |
 | `./behaviours/*.svg` | https://fontawesome.com/ | CC-BY 4.0 |