diff --git a/docker/Dockerfile b/docker/Dockerfile
index f4fb250..49b5b7d 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -29,7 +29,7 @@ RUN cmake .. \
 # Must track the builder's Debian release: the builder (debian:13/trixie) links
 # against glibc 2.38+, so an older runtime (e.g. bookworm, glibc 2.36) cannot run
 # the resulting binary. Package names use the trixie t64 spelling.
-FROM debian:trixie-slim@sha256:d7e12182ce18b85b93007c1dedf31f2d29e01ccf3182cc4017c709b6259bc132
+FROM debian:trixie-slim@sha256:a99cfc517144bc59b1978475ec53b46ecabec7e43635402ee5b77cc54cd1b20a
 
 RUN apt-get update && apt-get install -y \
     libcurl3t64-gnutls \