diff --git a/requirements.txt b/requirements.txt
index 17c365e..a11101d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ Flask-WTF==0.14.2
 gunicorn==19.7.1
 idna==2.6
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 PyMySQL==0.8.0
 pysqlite3==0.1.0