diff --git a/Dockerfile b/Dockerfile
index 24f9335..8d49537 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # Dostalgia — Quarkus multi-stage build
 
 # ─── 1. Build frontend ───────────────────────────
-FROM node:20-bookworm AS frontend
+FROM node:20-alpine AS frontend
 WORKDIR /build
 COPY frontend/package.json frontend/package-lock.json ./
 RUN npm ci 2>/dev/null || npm install --legacy-peer-deps
@@ -9,7 +9,7 @@ COPY frontend/ ./
 RUN npm run build
 
 # ─── 2. Build Quarkus app ────────────────────────
-FROM maven:3-eclipse-temurin-21 AS build
+FROM maven:3-eclipse-temurin-21-alpine AS build
 WORKDIR /build
 COPY pom.xml ./
 COPY src ./src