diff --git a/Dockerfile.Demo b/Dockerfile.Demo
index e3fcb975..eb9d8446 100644
--- a/Dockerfile.Demo
+++ b/Dockerfile.Demo
@@ -2,12 +2,14 @@ FROM python:3.12
 
 WORKDIR /app
 
+COPY . .
+
 ENV PYTHONUNBUFFERED=1
 
-RUN apt-get update && apt-get install -y libgl1 \
-    && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y libgl1
+
+RUN pip install .
 
-RUN pip install pdf2zh
 RUN mkdir -p /data
 RUN chmod 777 /data
 RUN mkdir -p /app
@@ -17,4 +19,4 @@ RUN chmod 777 /.cache
 RUN mkdir -p ./gradio_files
 RUN chmod 777 ./gradio_files
 
-CMD ["pdf2zh", "-i"]
\ No newline at end of file
+CMD ["pdf2zh", "-i"]