diff --git a/greent/requirements.txt b/greent/requirements.txt
index e4c6eefe..fc409419 100644
--- a/greent/requirements.txt
+++ b/greent/requirements.txt
@@ -33,7 +33,7 @@ jupyter==1.0.0
 jupyter-client==5.1.0
 jupyter-console==5.2.0
 jupyter-core==4.3.0
-jupyterlab==0.27.0
+jupyterlab==1.2.21
 jupyterlab-launcher==0.5.1
 MarkupSafe==1.0
 mistune==0.7.4