anchor.diff:  
   buildPythonPackage rec {
     pname = "cyclonedx-python-lib";
  -  version = "2.4.0";
  +  version = "2.5.1";
     format = "pyproject";
   
     disabled = pythonOlder "3.9";
  
positive.code:     packageurl-python
      requirements-parser
      setuptools
      toml
      types-setuptools
      types-toml
  
negative.code:     owner = "CycloneDX";
      repo = pname;
      rev = "refs/tags/v${version}";
      hash = "sha256-w/av9U42fC4g7NUw7PSW+K822klH4e1xYFPh7I4jrRA=";
    };
  
    nativeBuildInputs = [
  