diff --git a/docs/requirements.txt b/docs/requirements.txt
index 23b2733..bf6d70c 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -5,7 +5,7 @@ mkdocstrings==0.17.0     # Autogenerate documentation from docstrings.
 mknotebooks==0.7.1       # Turn Jupyter Lab notebooks into webpages.
 pytkdocs_tweaks==0.0.8   # Tweaks mkdocstrings to improve various aspects
 mkdocs_include_exclude_files==0.0.1  # Tweak which files are included/excluded
-jinja2==3.0.3            # Older version. After 3.1.0 seems to be incompatible with current versions of mkdocstrings.
+jinja2==3.1.6            # Older version. After 3.1.0 seems to be incompatible with current versions of mkdocstrings.
 pygments==2.14.0
 mkdocs-autorefs==1.0.1
 mkdocs-material-extensions==1.3.1