diff --git a/requirements.txt b/requirements.txt
index 2dc3d29..29bd9fc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ json5==0.9.5
 jsonschema==3.2.0
 jupyter-client==6.1.11
 jupyter-core==4.7.0
-jupyter-server==1.2.2
+jupyter-server==1.15.4
 jupyterlab==3.0.5
 jupyterlab-pygments==0.1.2
 jupyterlab-server==2.1.2