# Testing
coverage==4.5.1                  # Test coverage
flake8==3.5.0                    # Python linting
mypy==0.610                      # Type checking

# Testing
coverage==4.5.1                  # Test coverage
flake8==3.5.0                    # Python linting
mypy==0.620                      # Type checking

Update mypy package to 0.620
Update mypy package to 0.620
