diff --git a/docker/Dockerfile.coordinator b/docker/Dockerfile.coordinator
index 776407d..06b12b5 100644
--- a/docker/Dockerfile.coordinator
+++ b/docker/Dockerfile.coordinator
@@ -36,7 +36,7 @@ RUN npm run build
 # Stage 2 — the coordinator runtime
 # ---------------------------------------------------------------------------
 #   python:3.12-slim (3.12.13-slim-trixie) as of 2026-07-14
-FROM python:3.12-slim@sha256:57cd7c3a7a273101a6485ba99423ee568157882804b1124b4dd04266317710de AS runtime
+FROM python:3.14-slim@sha256:cea0e6040540fb2b965b6e7fb5ffa00871e632eef63719f0ea54bca189ce14a6 AS runtime
 
 ENV PYTHONUNBUFFERED=1 \
     PYTHONDONTWRITEBYTECODE=1 \
diff --git a/docker/Dockerfile.doc-extract b/docker/Dockerfile.doc-extract
index 12bb684..dbe89fe 100644
--- a/docker/Dockerfile.doc-extract
+++ b/docker/Dockerfile.doc-extract
@@ -11,7 +11,7 @@
 
 #   python:3.12-slim (3.12.13-slim-trixie) as of 2026-07-14 — same digest as the
 #   coordinator image, so the two share every base layer on disk.
-FROM python:3.12-slim@sha256:57cd7c3a7a273101a6485ba99423ee568157882804b1124b4dd04266317710de
+FROM python:3.14-slim@sha256:cea0e6040540fb2b965b6e7fb5ffa00871e632eef63719f0ea54bca189ce14a6
 
 ENV PYTHONUNBUFFERED=1 \
     PYTHONDONTWRITEBYTECODE=1 \