diff --git a/server/Dockerfile b/server/Dockerfile
index 2e48b69..b7deba8 100644
--- a/server/Dockerfile
+++ b/server/Dockerfile
@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1.7
 
 # ---- deps: full dependency tree, cached on lockfile changes only ----
-FROM node:24.11-alpine AS deps
+FROM node:26.13-alpine AS deps
 WORKDIR /app
 COPY package.json package-lock.json ./
 RUN npm ci --no-audit --no-fund
@@ -12,7 +12,7 @@ COPY . .
 RUN npm run build && npm prune --omit=dev --no-audit --no-fund
 
 # ---- runtime: minimal, non-root ----
-FROM node:24.11-alpine AS runtime
+FROM node:26.13-alpine AS runtime
 ARG APP_VERSION=dev
 ENV NODE_ENV=production \
     APP_VERSION=${APP_VERSION} \