diff --git a/LICENSE.md b/LICENSE.md
index ed44d10..2ec89e9 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -24,6 +24,8 @@
 - Icon: Creative Commons CC0 License
 - Original sound files:
     - wakeup.ogg: Creative Commons CC0 License
+    - gasp.ogg: Creative Commons CC0 License
+    - gasprelief.ogg: Creative Commons CC0 License
 - Other sound files: [Pixabay Content License](https://pixabay.com/service/license-summary)
     - https://pixabay.com/sound-effects/typosonic-typing-192811
     - https://pixabay.com/sound-effects/click-button-140881