diff --git a/proj1/requirements.txt b/proj1/requirements.txt
index e911f7c..7e56508 100644
--- a/proj1/requirements.txt
+++ b/proj1/requirements.txt
@@ -79,7 +79,7 @@ jsonschema==2.6.0
 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==0.4.0
 lazy-object-proxy==1.3.1
 llvmlite==0.20.0