diff --git a/requirements.txt b/requirements.txt
index cd14f50..7e0d9b5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ Flask-Jsonpify==1.5.0
 Flask-RESTful==0.3.7
 idna==2.8
 itsdangerous==1.1.0
-Jinja2==2.10.1
+Jinja2==2.11.3
 MarkupSafe==1.1.0
 PyMySQL==0.9.3
 pytz==2018.9