diff --git a/APR2019_MeetUp/requirements.txt b/APR2019_MeetUp/requirements.txt
index 407b277..f6ee833 100644
--- a/APR2019_MeetUp/requirements.txt
+++ b/APR2019_MeetUp/requirements.txt
@@ -17,7 +17,7 @@ Jinja2==2.10.1
 jsonschema==3.0.1
 jupyter-client==5.2.4
 jupyter-core==4.4.0
-jupyterlab==0.35.6
+jupyterlab==1.2.21
 jupyterlab-server==0.2.0
 kiwisolver==1.1.0
 MarkupSafe==1.1.1