diff --git a/Dockerfile b/Dockerfile
index df467b5..ec02594 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -33,6 +33,7 @@ RUN \
         desktop-file-utils \
         adwaita-icon-theme \
         ttf-dejavu \
+        ffmpeg-libs \
         # The following package is used to send key presses to the X process.
         xdotool