diff --git a/docs/requirements.txt b/docs/requirements.txt
index 8b1276a..1bac0e2 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -4,8 +4,8 @@ nbsphinx
 # the following pair of requirements works with Python 3.9 on readthedocs
 sphinx==5.0.0
 # the following is necessary in order for sphinx to be imported without error!
-jinja2==3.0.0
+jinja2==3.1.5
 
 # the following works with Python 3.8 on readthedocs
 # sphinx==4.2.0
-# jinja2==3.0.0
+# jinja2==3.1.5