diff --git a/Dockerfile b/Dockerfile
index 076e8ad..823c794 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ RUN set -ex; \
     cd /build; \
     make build;
 
-FROM debian:bullseye-slim@sha256:2f2307d7c75315ca7561e17a4e3aa95d58837f326954af08514044e8286e6d65
+FROM debian:bullseye-slim@sha256:779034981fec838da124ff6ab9211499ba5d4e769dabdfd6c42c6ae2553b9a3b
 
 COPY --from=build /build/bin/signaling /usr/local/bin/signaling
 COPY --from=build /build/server.conf.in /config/server.conf