':return: True if the changelog shows any modifications to the
dependency_check.py files.'

def _added_new_dependencies(self, changelog):

    dependency_controllers = ['dependency_check.py', 'requirements.py']
    for commit in changelog.get_changes():
        for (action, filename) in commit.changes:
            for dependency_file in dependency_controllers:
                if (filename.endswith(dependency_file) and (action == 'M')):
                    return True
    return False
