diff --git a/postBuild b/postBuild
index 3512582..ff03503 100644
--- a/postBuild
+++ b/postBuild
@@ -2,7 +2,7 @@
 
 # Enable the proxy extension in notebook and lab
 jupyter serverextension enable --py jupyter_server_proxy
-jupyter labextension install jupyterlab-server-proxy
+jupyter labextension install @jupyterlab/server-proxy
 jupyter lab build
 
 code-server --install-extension ms-python.python