Version 1.3 is not properly uploaded in PyPI

I was unable to install PCM2Wav==1.3 on some installations, and I narrowed down the cause to the fact that only a .egg file is available in PyPI for 1.3: https://pypi.org/project/PCM2Wav/1.3/#files

Is it possible to add the .tar.gz file, similar to what is available for 1.2? Thanks!