diff --git a/smart-docs/requirements.txt b/smart-docs/requirements.txt
index 3ecd6dd0..01ef3a52 100644
--- a/smart-docs/requirements.txt
+++ b/smart-docs/requirements.txt
@@ -7,7 +7,7 @@ CommonMark==0.5.4
 docutils==0.14
 idna==2.7
 imagesize==1.0.0
-Jinja2==2.10
+Jinja2==3.1.6
 livereload==2.5.2
 MarkupSafe==1.0
 packaging==17.1