diff --git a/Dockerfile b/Dockerfile
index d9a2806..eb33d91 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 # ECHOFORM API — multi-stage, non-root, HEALTHCHECK.
 
 # --- builder ---
-FROM python:3.11-slim AS builder
+FROM python:3.14-slim AS builder
 
 ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
@@ -26,7 +26,7 @@ RUN python -m venv /opt/venv && \
     /opt/venv/bin/pip install .
 
 # --- runtime ---
-FROM python:3.11-slim AS runtime
+FROM python:3.14-slim AS runtime
 
 ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \