diff --git a/postBuild b/postBuild
index 7255e81..6e810ae 100755
--- a/postBuild
+++ b/postBuild
@@ -1,3 +1,3 @@
 jupyter contrib nbextension install --user
 jupyter nbextension enable --py widgetsnbextension
-jupyter labextension install @jupyter-widgets/jupyterlab-manager@0.38 --minimize=False
+jupyter labextension install @jupyter-widgets/jupyterlab-manager --minimize=False