diff --git a/Dockerfile b/Dockerfile
index dcae7c2..9144e28 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -85,10 +85,19 @@ COPY --link frankenphp/conf.d/app.dev.ini $PHP_INI_DIR/conf.d/
 
 CMD [ "frankenphp", "run", "--config", "/etc/caddy/Caddyfile", "--watch" ]
 
+# Composer dependencies (needed for Symfony UX assets referenced in package.json)
+FROM composer:2 AS composer_deps
+WORKDIR /app
+COPY --link composer.* symfony.* ./
+RUN composer install --no-cache --prefer-dist --no-dev --no-autoloader --no-scripts --no-progress --ignore-platform-reqs
+
 # Stage Node.js pour compiler les assets (Webpack Encore)
 FROM node:22-alpine AS node_build
 WORKDIR /app
 COPY --link package.json package-lock.json ./
+COPY --from=composer_deps /app/vendor/symfony/ux-live-component/assets ./vendor/symfony/ux-live-component/assets
+COPY --from=composer_deps /app/vendor/symfony/ux-react/assets ./vendor/symfony/ux-react/assets
+COPY --from=composer_deps /app/vendor/symfony/ux-turbo/assets ./vendor/symfony/ux-turbo/assets
 RUN npm ci
 COPY --link assets ./assets
 COPY --link webpack.config.js ./