diff --git a/Dockerfile b/Dockerfile
index 2f14997..4baa252 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # build the tube archivist image from default python slim image
 
-FROM python:3.9.7-slim-bullseye
+FROM python:3.9.9-slim-bullseye
 ARG TARGETPLATFORM
 
 ENV PYTHONUNBUFFERED 1
diff --git a/tubearchivist/requirements.txt b/tubearchivist/requirements.txt
index bd305ff..60b08bb 100644
--- a/tubearchivist/requirements.txt
+++ b/tubearchivist/requirements.txt
@@ -6,4 +6,4 @@ redis==3.5.3
 requests==2.26.0
 uWSGI==2.0.20
 whitenoise==5.3.0
-yt_dlp==2021.11.10
+yt_dlp==2021.12.1