diff --git a/requirements.txt b/requirements.txt
index a6e7271..8179e1c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ json5==0.8.5
 jsonschema==3.2.0
 jupyter-client==5.3.4
 jupyter-core==4.6.1
-jupyterlab==1.2.3
+jupyterlab==1.2.21
 jupyterlab-server==1.0.6
 kiwisolver==1.1.0
 MarkupSafe==1.1.1