diff --git a/docker/Dockerfile b/docker/Dockerfile
index 035eaba..86b29a8 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@sha256:020c0d20b9880058cbe785a9db107156c3c75c2ac944a6aa7ab59f2add76a7bd
+FROM debian:trixie-slim@sha256:3a39a0592364683e6bab97937b72cad5a8fa6dcbbee90edb3bb48c7f8e94f258
 
 RUN apt-get update && apt-get install -y \
     libcurl3t64-gnutls \