diff --git a/requirements.txt b/requirements.txt
index 3d68a53..1aeb1ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ pymysql==0.7.9
 flask-sqlalchemy
 flask-login==0.4.0
 itsdangerous==0.24
-Jinja2==2.8
+Jinja2==2.11.3
 MarkupSafe==0.23
 numpy==1.10.4
 Werkzeug==0.15.3