diff --git a/deploy/lb.Dockerfile b/deploy/lb.Dockerfile
index be75e51..f92b3d5 100644
--- a/deploy/lb.Dockerfile
+++ b/deploy/lb.Dockerfile
@@ -2,7 +2,7 @@
 # round-robins API requests across the app instances (see deploy/Caddyfile).
 # Build context: the repository root (deploy/docker-compose.yml sets it).
 
-FROM node:22-alpine AS frontend
+FROM node:26-alpine AS frontend
 WORKDIR /src
 COPY frontend/package.json frontend/package-lock.json ./
 RUN npm ci