diff --git a/docs/overview/environment.md b/docs/overview/environment.md
index 31523e32..6a0055ce 100644
--- a/docs/overview/environment.md
+++ b/docs/overview/environment.md
@@ -24,7 +24,8 @@ Select *Stop My Server* to stop your server and release all of the resources you
 
 ![JupyterHub menu to stop the server](images/hub-home.png)
 
-Note that we will automatically stop servers that seem to be idle.
+Note that we will automatically stop notebook servers that appear idle or are older that 24 hours. If you expect a job to take longer
+than 24 hours, then see [running batch jobs](./batch) for a way to submit long-running jobs.
 
 ## Using JupyterLab
 
diff --git a/etl/requirements.txt b/etl/requirements.txt
index bb05b7c9..ff975d65 100644
--- a/etl/requirements.txt
+++ b/etl/requirements.txt
@@ -3,7 +3,7 @@ ipython==7.31.1
 nbconvert==6.0.*
 
 # Sphinx docs rendering
-Jinja2==2.11.3
+Jinja2==3.0.*
 myst-parser>=0.13.5
 nbsphinx==0.8.3
 nbconvert==6.0.*