diff --git a/Doc/requirements.txt b/Doc/requirements.txt
index df5b687e..0c82647e 100644
--- a/Doc/requirements.txt
+++ b/Doc/requirements.txt
@@ -9,7 +9,7 @@ sphinx==2.4.4
 # least 3.5.4.
 docutils==0.17.1
 # Jinja version is pinned to a version compatible with Sphinx version 2.4.4.
-jinja2==3.0.3
+jinja2==3.1.5
 # Alabaster version is pinned to a version compatible with Sphinx version 2.4.4.
 alabaster==0.7.13