marshmallow<4.0.0,>=3.0.0rc6

[dev]
pytest
mock
flake8==3.7.8
flake8-bugbear==19.3.0
pre-commit~=1.17.0
tox

[lint]
flake8==3.7.8
flake8-bugbear==19.3.0
pre-commit~=1.17.0

[tests]
pytest
mock
