diff --git a/requirements.txt b/requirements.txt
index 4611639..8715459 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,6 +4,12 @@ wheel>=0.37.1
 # jupyter
 ipython>=8.3.0
 jupyter>=1.0.0
+widgetsnbextension>=3.6.1
+# FIXME
+# according to https://github.com/microsoft/vscode-jupyter/issues/8552
+# need to use v 7.7.2 for now
+# ipywidgets>=8.0.2
+ipywidgets==7.7.2
 
 # running
 codetiming>=1.3.0