diff --git a/Dockerfile b/Dockerfile
index 0e87c56..ef51c9b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,11 @@
 FROM node:alpine as builder
+LABEL org.opencontainers.image.title="db-rest"
+LABEL org.opencontainers.image.description="A clean REST API wrapping around the Deutsche Bahn API."
+LABEL org.opencontainers.image.authors="Jannis R <mail@jannisr.de>"
+LABEL org.opencontainers.image.documentation="https://github.com/derhuerst/db-rest/tree/5"
+LABEL org.opencontainers.image.source="https://github.com/derhuerst/db-rest"
+LABEL org.opencontainers.image.revision="5"
+LABEL org.opencontainers.image.licenses="ISC"
 WORKDIR /app
 
 # install dependencies
@@ -17,7 +24,7 @@ WORKDIR /app
 
 # install dependencies
 ADD package.json /app
-RUN npm install --production
+RUN npm install --production && npm cache clean --force
 
 # add source code
 ADD . /app