install_requires = [
'waitress',
- 'alembic',
+ 'alembic>=0.7.5',
'python-dateutil',
'wtforms',
'py-bcrypt',
'pytest>=2.3.1',
'pytest-xdist',
'werkzeug>=0.7',
- 'celery>=3.0',
- 'kombu',
+ 'celery>=3.0,<4.0a0',
+ 'kombu<4.0a0',
'jinja2',
'Babel>=1.3',
'WebTest>=2.0.18',