security/py-cryptography has a test (which currently fails) which checks that its version is the same as one of security/py-cryptography-vectors. So security/py-cryptography should probably be updated at least to 3.4.8.
_____________________________ test_vector_version ______________________________
> assert cryptography.__version__ == cryptography_vectors.__version__
E AssertionError: assert '3.3.2' == '3.4.8'
E - 3.4.8
E + 3.3.2