diff --git a/python_513/yyl_app/Pipfile b/python_513/yyl_app/Pipfile
index 800523f..7e701a1 100644
--- a/python_513/yyl_app/Pipfile
+++ b/python_513/yyl_app/Pipfile
@@ -8,7 +8,7 @@ name = "pypi"
 Flask = "==1.0.2"
 MarkupSafe = "==1.1.1"
 Werkzeug = "==0.15.2"
-Jinja2 = "==2.10.1"
+Jinja2 = "==2.11.3"
 itsdangerous = "==1.1.0"
 click = ">=5.0"