diff --git a/requirements.txt b/requirements.txt
index 62d6642..c86c0de 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ future==0.17.1
 googlefinance==0.7
 gunicorn==19.7.1
 idna==2.8
-Jinja2==2.10.1
+Jinja2==2.11.3
 joblib==0.13.2
 kiwisolver==1.1.0
 line-bot-sdk==1.10.0