diff --git a/Dockerfile b/Dockerfile
index 9d9c62b..fa2def1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,21 +1,28 @@
-FROM node:18-alpine
-
-RUN apk update
+# Stage 1: install dependencies
+FROM node:25-alpine AS deps
+WORKDIR /app
+COPY package*.json .
 ARG NODE_ENV=production
 ENV NODE_ENV=${NODE_ENV}
+RUN npm config set fetch-retry-maxtimeout 600000 -g && npm ci
 
+# Stage 2: build
+FROM node:25-alpine AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
 ENV DIRECTUS_URL=https://clic.epfl.ch/directus
 ENV NEXT_PUBLIC_DIRECTUS_URL=https://clic.epfl.ch/directus
+RUN apk update && npm run build
 
+# Stage 3: run
+FROM node:25-alpine
 WORKDIR /app
-COPY package.json package-lock.json ./
-RUN npm config set fetch-retry-maxtimeout 600000 -g && npm ci
-
-COPY . .
-RUN npm run build
-
 # switch to unprivileged user from node base image
 RUN chown -R node .
 USER node
-
+COPY --from=builder /app/.next ./.next
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/package.json ./
 CMD [ "npm", "start" ]