-r requirements-test.txt
black==21.5b0
Flask-DebugToolbar==0.11.0
flask-shell-ipython==0.4.1
mypy==0.812
python-dotenv==0.14.0
Sphinx==3.3.1
sqlalchemy-stubs==0.4

-r requirements-test.txt
black==21.6b0
Flask-DebugToolbar==0.11.0
flask-shell-ipython==0.4.1
mypy==0.812
python-dotenv==0.14.0
Sphinx==3.3.1
sqlalchemy-stubs==0.4

Update black to v21.6b0 (from v21.5b0)
Update black to v21.6b0 (from v21.5b0)
