I am using certifi python module to verify ssl connections. I looked at the root certificates included in certifi (python2.7/site-packages/certifi/cacert.pem) and some of those certificates have expired. How do I update those certificates? I tried updating certifi package using pip but that only updates the package and not the root CA files.
certifi/cacert.pem is, naturally, a part of certifi. Consequently, it's supposed to be updated with the module.
pip install git+https://github.com/certifi/python-certifi.cacert.pem with any other certificate bundle that meets your needs, like the Mozilla root certificate store. Of course, your changes will be lost the next time you update the module.