diff --git a/requirements.txt b/requirements.txt
index 9589168..b5cd748 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ Flask-WTF==0.14.3
 gunicorn==20.0.4
 idna==2.10
 itsdangerous==1.1.0
-Jinja2==2.11.2
+Jinja2==3.1.5
 Mako==1.1.3
 MarkupSafe==1.1.1
 mccabe==0.6.1