In our group we have developed the RuNNer code, a program package for constructing high-dimensional neural network potentials. RuNNer is freely available upon request under the GPL3 licence. We currently host the source code in a repository at gitlab. If you are interested in obtaining a free copy of RuNNer, please write an email to joerg.behler@uni-goettingen.de stating your name, institution, official institutional email address and your gitlab username. For more information, please visit the homepage of package RuNNer or contact us.