diff --git a/fullstack_flask/requirements.txt b/fullstack_flask/requirements.txt
index b4b9df5..dbf17f2 100644
--- a/fullstack_flask/requirements.txt
+++ b/fullstack_flask/requirements.txt
@@ -10,7 +10,7 @@ Flask-Mail==0.9.1
 Flask-SQLAlchemy==2.3.2
 Flask-WTF==0.14.2
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 Pillow==5.3.0
 pycparser==2.18