diff --git a/dev-requirements.txt b/dev-requirements.txt
index 3dfaad8..1d81c7a 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -24,7 +24,7 @@ json5==0.9.5
 jsonschema==3.2.0
 jupyter-client==6.1.12
 jupyter-core==4.7.1
-jupyter-server==1.8.0
+jupyter-server==1.15.4
 jupyterlab==3.0.17
 jupyterlab-pygments==0.1.2
 jupyterlab-server==2.5.2