diff --git a/roles/photos/tasks/photo-gallery.yaml b/roles/photos/tasks/photo-gallery.yaml
index 675c844..bfad09c 100644
--- a/roles/photos/tasks/photo-gallery.yaml
+++ b/roles/photos/tasks/photo-gallery.yaml
@@ -1,7 +1,7 @@
 ---
 - name: Install dependencies
   apt:
-    name: [ nodejs, npm, imagemagick, graphicsmagick ]
+    name: [ nodejs, npm, imagemagick, graphicsmagick, ffmpeg ]
 
 - name: Clone source
   git: