diff --git a/requirements.txt b/requirements.txt
index b34ccab..78947f8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,7 @@ uvicorn[standard]>=0.29.0
 python-multipart>=0.0.9
 pydub>=0.25.1
 numpy>=1.26.0
+pedalboard>=0.9.0
 scipy>=1.12.0
 requests>=2.31.0
 yt-dlp>=2024.3.10