diff --git a/Dockerfile b/Dockerfile
index 1c36481..fff1123 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,13 +1,29 @@
+# Stage 1: Build dependencies
+FROM python:3.10-slim AS builder
+
+WORKDIR /app
+
+# Upgrade pip and setuptools
+RUN pip install --upgrade pip setuptools
+
+# Copy and install requirements
+# This layer is cached and only re-runs when requirements.txt changes
+COPY ./requirements.txt /app/
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Stage 2: Final application image
 FROM python:3.10-slim
 
 WORKDIR /app
 
-# 复制所需文件到容器中
-COPY ./requirements.txt /app
+# Copy installed packages from the builder stage
+COPY --from=builder /usr/local/lib/python3.10/site-packages /usr/local/lib/python3.10/site-packages
+
+# Copy the application code
+COPY ./app /app/app
 COPY ./VERSION /app
 
-RUN pip install --no-cache-dir -r requirements.txt
-COPY ./app /app/app
+# Set environment variables
 ENV API_KEYS='["your_api_key_1"]'
 ENV ALLOWED_TOKENS='["your_token_1"]'
 ENV TZ='Asia/Shanghai'