diff --git a/Dockerfile b/Dockerfile
index 67c1cf4..5f786dc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,9 @@
 FROM python:3-alpine
 
 WORKDIR /usr/src/app
-
+RUN apk update
+RUN apk upgrade
+RUN apk add bash
 COPY wsdd.py .
 COPY docker-cmd.sh .