diff --git a/requirements.txt b/requirements.txt
index 163346e5..d573d645 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,7 @@ polars
 matplotlib
 nbconvert==6.4.5
 jsonschema==4.17.3
+jupyterlab_server==2.22.1
 jupyterlab==4.0.6
 pyarrow
 mdformat==0.7.5