Yes I do :) You can see on the following step which image is being used when deploying an app: https://github.com/progrium/dokku/blob/master/dokku#L33 https:/

Yes I do :) You can see on the following step which image is being used when deploying an app: https://github.com/progrium/dokku/blob/master/dokku#L33 https://github.com/progrium/dokku/blob/master/dokku#L33 So what I did was change that to an image of my own based on the progrium/buildstep one: sudo docker run -i -t progrium/buildstep /bin/bash Now you can make changes to it and save them into your new image (while you are still logged in to progrium/buildstep): sudo docker commit <id> myownimage OK, and inside this image I have referenced my own buildstep instead of the default Heroku one. The relevant txt document is in /build/. And to get to the point I have changed the npm install line to run pointing to the http EU repo. npm install --registry "http://registry.npmjs.eu" --userconfig $build_dir/.npmrc --production 2>&1 | indent That is one way to go about it.