diff --git a/.github/docker/Dockerfile.production b/.github/docker/Dockerfile.production
index ae3cfa1b44..b0ec1d7adb 100644
--- a/.github/docker/Dockerfile.production
+++ b/.github/docker/Dockerfile.production
@@ -14,8 +14,11 @@ RUN addgroup --gid 10001 --system liquidsoap && \
     --home /usr/share/liquidsoap --ingroup liquidsoap liquidsoap && \
     usermod --append --groups audio liquidsoap
 
-# For libfdk-aac-dev
-RUN echo "deb http://deb.debian.org/debian bookworm non-free" >> /etc/apt/sources.list
+# For ffmpeg with libfdk-aac
+RUN apt-get update && apt install -y ca-certificates && \
+    echo "deb https://www.deb-multimedia.org bookworm main non-free" >> /etc/apt/sources.list && \
+    apt-get update -oAcquire::AllowInsecureRepositories=true && \
+    apt-get install -y --allow-unauthenticated deb-multimedia-keyring
 
 COPY $DEB_FILE liquidsoap.deb
 COPY $DEB_DEBUG_FILE liquidsoap-debug.deb