diff --git a/Dockerfile b/Dockerfile
index af9c5d5..b97c25e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,6 +16,7 @@ ENV TZ=Asia/Shanghai \
 
 WORKDIR /app
 
+RUN pip install flask
 # COPY requirements.txt .
 # RUN pip install --no-cache-dir -r requirements.txt