diff --git a/Dockerfile b/Dockerfile
index 6824add..c72ffaa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,8 @@ ENV UMASK=022
 ENV PATH="/app:${PATH}"
 
 # update and install requirements
-RUN apk update & apk add --no-cache ca-certificates libstdc++ su-exec bash-completion tar nodejs npm
+RUN apk update
+RUN apk add --no-cache ca-certificates libstdc++ su-exec bash-completion tar nodejs npm
 
 # copy entrypoint script to work directory
 COPY entrypoint.sh ./