Django>=1.8,<1.9.99
django_otp>=0.3.3,<0.99
qrcode>=4.0.0,<4.99
phonenumbers>=7.0.9,<7.99
django-phonenumber-field>=0.7.2,<0.99
django-formtools

[Call]
twilio

[SMS]
twilio

[YubiKey]
django-otp-yubikey
