diff --git a/Dockerfile b/Dockerfile
index 5da9e0b..36315c9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ RUN set -ex; \
     cd /build; \
     make build;
 
-FROM debian:bullseye-slim@sha256:e831d9a884d63734fe3dd9c491ed9a5a3d4c6a6d32c5b14f2067357c49b0b7e1
+FROM debian:bullseye-slim@sha256:33b7c2e071c29e618182ec872c471f39d2dde3d8904d95f5b7a61acf3a592e7b
 
 COPY --from=build /build/bin/signaling /usr/local/bin/signaling
 COPY --from=build /build/server.conf.in /config/server.conf