diff --git a/docs/requirements.txt b/docs/requirements.txt
index 55afbca..950cfd0 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -5,7 +5,7 @@ chardet==3.0.4
 docutils==0.14
 idna==2.7
 imagesize==0.7.1
-Jinja2==2.11.3
+Jinja2==3.1.3
 MarkupSafe==0.23
 Pygments==2.15.0
 pytz==2018.7