diff --git a/.github/workflows/pyinstaller-builds-actions-PIP-TAR.yml b/.github/workflows/pyinstaller-builds-actions-PIP-TAR.yml
index 83a8a49..ab39bb8 100644
--- a/.github/workflows/pyinstaller-builds-actions-PIP-TAR.yml
+++ b/.github/workflows/pyinstaller-builds-actions-PIP-TAR.yml
@@ -35,6 +35,7 @@ jobs:
         pip install -vvv --pre git+https://github.com/cadquery/cadquery casadi==3.5.5
         pip install pyinstaller>=5.6
         pip install path
+        pip install jupyter-rfb
         pip install git+https://github.com/gumyr/cq_warehouse.git#egg=cq_warehouse
         pip install git+https://github.com/meadiode/cq_gears.git@main
         pip install -e "git+https://github.com/CadQuery/cadquery-plugins.git#egg=cq_cache&subdirectory=plugins/cq_cache"