message: Try further downgrade (bc43b821eee65255f61086fb3f7bf3d4a592979f).
diff: @@ -26,7 +26,7 @@ dependencies:
  - livereload==2.6.3
  - nbstripout==0.6.0
  - opencv-python-headless==4.6.0.66
  - - pcpp==1.21
  + - pcpp==1.20.1
  - protobuf==4.21.5
  - sphinx-rtd-theme==1.0.0
  - sphinxcontrib-katex==0.9.0
  