diff --git a/requirements.txt b/requirements.txt
index f5389d9..c5cf7a4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Flask==1.1.1
 gunicorn==19.9.0
 itsdangerous==1.1.0
-jinja2==2.10.1
+jinja2==2.11.3
 MarkupSafe==1.1.1
 Werkzeug==0.15.5
 numpy>=1.9.2