diff --git a/doc/doc_requirements.txt b/doc/doc_requirements.txt
index 23186a2..749ab70 100644
--- a/doc/doc_requirements.txt
+++ b/doc/doc_requirements.txt
@@ -5,7 +5,7 @@ chardet==3.0.4
 docutils==0.15.2
 idna==2.8
 imagesize==1.1.0
-Jinja2==2.11.3
+Jinja2==3.1.4
 MarkupSafe==1.1.1
 packaging==19.2
 Pygments==2.7.4