diff --git a/Dockerfile b/Dockerfile
index 48c2789..d1ca948 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ RUN set -ex; \
     cd /build; \
     make build;
 
-FROM debian:buster-slim@sha256:42bc00cecab49304b2f56b6b5c6ee147c1f585467a87d8023169a2ccddb16cea
+FROM debian:buster-slim@sha256:a6bbc75c36b0d9d82ae4b64219b48c3027b7a101e9334b2ffb3bc71dbe94f552
 
 COPY --from=build /build/bin/signaling /usr/local/bin/signaling
 COPY --from=build /build/server.conf.in /config/server.conf