diff --git a/backend/Dockerfile b/backend/Dockerfile
index 859b957..ae018e7 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -3,7 +3,7 @@
 # Two stages so the runtime image carries the installed dependencies but
 # none of the build tooling. The confined filesystem root is a VOLUME:
 # the image never ships the data it manages.
-FROM python:3.12-slim AS builder
+FROM python:3.14-slim AS builder
 
 WORKDIR /build
 ENV PIP_DISABLE_PIP_VERSION_CHECK=1 PIP_NO_CACHE_DIR=1
@@ -14,7 +14,7 @@ RUN python -m venv /opt/venv \
  && /opt/venv/bin/pip install --upgrade pip \
  && /opt/venv/bin/pip install .
 
-FROM python:3.12-slim AS runtime
+FROM python:3.14-slim AS runtime
 
 ENV PATH="/opt/venv/bin:$PATH" \
     PYTHONUNBUFFERED=1 \