'Unable to install package on heroku

I am trying to deploy a python application to Heroku

In my python code I'm using sms-counter-python (on Github here) which works fine in local but I can't get it to run on my Heroku server.

Heroku log :

   ERROR: Could not find a version that satisfies the requirement sms-counter==1.0.0 (from versions: none)
   ERROR: No matching distribution found for sms-counter==1.0.0
   ! Push rejected, failed to compile Python app.
   ! Push failed

Any help?



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