diff --git a/projects/vdk-plugins/vdk-jupyter/vdk-jupyterlab-extension/pyproject.toml b/projects/vdk-plugins/vdk-jupyter/vdk-jupyterlab-extension/pyproject.toml
index 0b45e5f8c2..f14b273a32 100644
--- a/projects/vdk-plugins/vdk-jupyter/vdk-jupyterlab-extension/pyproject.toml
+++ b/projects/vdk-plugins/vdk-jupyter/vdk-jupyterlab-extension/pyproject.toml
@@ -25,6 +25,7 @@ classifiers = [
 dependencies = [
     "jupyter_server>=1.6,<3",
     "jupyterlab==3.6.3",
+    "traitlets==5.9.0",
     "vdk-control-cli",
     "vdk-core"
 ]