diff --git a/Dockerfile b/Dockerfile
index a8107eb..d509a2a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,8 @@
-FROM composer:2 AS composer
+FROM php:8.2-cli-alpine AS composer
+RUN apk add --no-cache unzip git && \
+    php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" && \
+    php composer-setup.php --install-dir=/usr/bin --filename=composer && \
+    php -r "unlink('composer-setup.php');"
 WORKDIR /app
 COPY composer.json composer.lock ./
 RUN composer install --no-dev --optimize-autoloader --no-scripts