Deprecation warning in WTForms

[JulienParis]

I noticed a warning while running the CI tests are running : see the link here and the message below =>

Detailed Description

=============================== warnings summary =============================== 
venv/lib/python3.7/site-packages/wtforms/ext/sqlalchemy/__init__.py:9 
  /root/project/venv/lib/python3.7/site-packages/wtforms/ext/sqlalchemy/__init__.py:9: DeprecationWarning: wtforms.ext.sqlalchemy is deprecated, and will be removed in WTForms 3.0. The package has been extracted to a separate package wtforms_sqlalchemy: https://github.com/wtforms/wtforms-sqlalchemy . 
  Or alternately, check out the WTForms-Alchemy package which provides declarative mapping and more: https://github.com/kvesteri/wtforms-alchemy 
    DeprecationWarning 
 
-- Docs: https://docs.pytest.org/en/latest/warnings.html 
---------- generated xml file: /root/project/reports/python/tests.xml ---------- 
============= 2069 passed, 2 skipped, 1 warnings in 285.23 seconds =============