repos:
- repo: https://github.com/ambv/black
  rev: stable
  hooks:
  - id: black
    language_version: python3.7
- repo: https://github.com/pre-commit/pre-commit-hooks
  rev: v2.0.0
  hooks:
  - id: flake8

repos:
- repo: https://github.com/ambv/black
  rev: 19.3b0
  hooks:
  - id: black
    language_version: python3.7
- repo: https://github.com/pre-commit/pre-commit-hooks
  rev: v2.0.0
  hooks:
  - id: flake8

Update black pre-commit hook version
Update black pre-commit hook version
