diff --git a/Dockerfile b/Dockerfile
index bf7d739..1b63a3f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,6 +8,7 @@ ENV http_proxy http://proxy-chain.xxx.com:911/
 ENV https_proxy http://proxy-chain.xxx.com:912/ 
 WORKDIR /app
 COPY requirements.txt .
+RUN apk update
 RUN apk add --no-cache strace
 RUN strace pip3 install --default-timeout=100 -r requirements.txt