diff --git a/flask/requirements.txt b/flask/requirements.txt
index 6f02fb6..bace45c 100644
--- a/flask/requirements.txt
+++ b/flask/requirements.txt
@@ -1,6 +1,6 @@
 Click==7.0
 Flask==1.0.2
 itsdangerous==1.1.0
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.1.0
 Werkzeug==0.14.1