diff --git a/Dockerfile b/Dockerfile
index 301cc72..d7651c7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM node:lts-alpine3.9
 
-RUN apk update && apk upgrade && apk add --no-cache bash git openssh python py-pip
+RUN apk update && apk add --no-cache bash git openssh python py-pip
 
 RUN pip install --no-cache-dir -q --upgrade pip
 RUN pip install --no-cache-dir -q autopep8