diff --git a/Dockerfile b/Dockerfile
index ba99dec..cfd542a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
 FROM node:lts-alpine3.9
-RUN apk update && apk upgrade && apk add --no-cache bash git openssh
+RUN apk update && apk add --no-cache bash git openssh
 COPY entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]