diff --git a/youtube-dl/Dockerfile b/youtube-dl/Dockerfile
index a86120da63df9129c545eb26a3a37d587d78100f..c3e823335c76ffa47347d69dd0cd76cb55a07047 100644
--- a/youtube-dl/Dockerfile
+++ b/youtube-dl/Dockerfile
@@ -2,6 +2,7 @@ FROM docker.io/library/debian:testing
 # hadolint ignore=DL3008,DL3015
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -y \
+        ffmpeg \
         youtube-dl \
     && \
     rm -rf /tmp/* /var/tmp/* /var/lib/apt/lists/* /var/cache/apt/archives/*