diff --git a/python-3.7.4-2.build.sh b/python-3.7.4-2.build.sh
index 5b83494..5c26aa6 100755
--- a/python-3.7.4-2.build.sh
+++ b/python-3.7.4-2.build.sh
@@ -217,5 +217,8 @@ pip3 install pyGenomeTracks
 pip3 install python-bioformats
 
 pip3 install jupyterlab      # request Peter Arndt
+pip3 install libxml2-python3 # required by several bee packages after swich to python3
+pip3 install scour           # https://github.molgen.mpg.de/mariux64/pkg-scripts/issues/98
+pip3 install jupyterlab-git  # https://github.molgen.mpg.de/mariux64/pkg-scripts/issues/96
 
 exit