diff --git a/Dockerfile.ci b/Dockerfile.ci
index 75134972..24441d11 100644
--- a/Dockerfile.ci
+++ b/Dockerfile.ci
@@ -1,6 +1,6 @@
 FROM alpine:3.21
 
-RUN apk add --no-cache ca-certificates jq curl
+RUN apk add --no-cache ca-certificates jq curl ffmpeg
 
 ARG EXECUTABLE=./gomuks
 COPY $EXECUTABLE /usr/bin/gomuks