diff --git a/requirements.docs.txt b/requirements.docs.txt
index 09fb6b444..632361e57 100644
--- a/requirements.docs.txt
+++ b/requirements.docs.txt
@@ -1,4 +1,5 @@
 tornado<7.0
 markdown==3.3.6
 mkdocs==1.2.3
+jinja2==3.0.3
 mkdocs-material==6.2.8