diff --git a/docs/conf.py b/docs/conf.py
index ee4b0702..cc3aed98 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -112,6 +112,7 @@ def setup(app):
     "pillow",
     "PIL",
     "tqdm",
+    "noisereduce",
 ]
 
 master_doc = "index"