diff --git a/requirements.txt b/requirements.txt
index 803c21a..83d77d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 numpy==1.14.3
 matplotlib==2.2.2
 scipy==1.1.0
-jupyterlab==0.34.12
+jupyterlab==1.2.21