diff --git a/Dockerfile b/Dockerfile
index da51402..0359950 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,23 @@
+# 构建阶段
+FROM python:3.12.2-alpine AS builder
+ARG TARGETARCH
+ARG TARGETVARIANT
+
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.ustc.edu.cn/g' /etc/apk/repositories
+
+WORKDIR /build
+COPY ./deploy/requirements.txt /build/
+
+RUN --mount=type=cache,target=/etc/apk/cache,id=apk-cahce-$TARGETARCH$TARGETVARIANT-builder \
+    --mount=type=cache,target=/root/.cache/pip,id=pip-cahce-$TARGETARCH$TARGETVARIANT-builder \
+    <<EOS
+set -ex
+pip config set global.index-url https://mirrors.ustc.edu.cn/pypi/web/simple
+apk add gcc libc-dev python3-dev libpq-dev libjpeg-turbo-dev zlib-dev freetype-dev
+pip install --no-cache-dir -r requirements.txt
+EOS
+
+# 运行阶段
 FROM python:3.12.2-alpine
 ARG TARGETARCH
 ARG TARGETVARIANT
@@ -7,22 +27,17 @@ RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.ustc.edu.cn/g' /etc/apk/repositorie
 ENV OJ_ENV production
 WORKDIR /app
 
-COPY ./deploy/requirements.txt /app/deploy/
-# psycopg2: libpg-dev
-# pillow: libjpeg-turbo-dev zlib-dev freetype-dev
 RUN --mount=type=cache,target=/etc/apk/cache,id=apk-cahce-$TARGETARCH$TARGETVARIANT-final \
-    --mount=type=cache,target=/root/.cache/pip,id=pip-cahce-$TARGETARCH$TARGETVARIANT-final \
     <<EOS
 set -ex
-pip config set global.index-url https://mirrors.ustc.edu.cn/pypi/web/simple
-apk add gcc libc-dev python3-dev libpq libpq-dev libjpeg-turbo libjpeg-turbo-dev zlib zlib-dev freetype freetype-dev supervisor openssl nginx curl unzip
-pip install -r /app/deploy/requirements.txt
-apk del gcc libc-dev python3-dev libpq-dev libjpeg-turbo-dev zlib-dev freetype-dev
+apk add --no-cache libpq libjpeg-turbo zlib freetype supervisor openssl nginx curl unzip
 EOS
 
+COPY --from=builder /usr/local/lib/python3.12/site-packages/ /usr/local/lib/python3.12/site-packages/
 COPY ./ /app/
-RUN mkdir -p /app/dist/
-RUN chmod -R u=rwX,go=rX ./ && chmod +x ./deploy/entrypoint.sh
+RUN mkdir -p /app/dist/ && \
+    chmod -R u=rwX,go=rX ./ && \
+    chmod +x ./deploy/entrypoint.sh
 
 HEALTHCHECK --interval=5s CMD [ "/usr/local/bin/python3", "/app/deploy/health_check.py" ]
 EXPOSE 8000