diff --git a/flask/requirements.txt b/flask/requirements.txt
index 47da39a..44683ba 100644
--- a/flask/requirements.txt
+++ b/flask/requirements.txt
@@ -6,7 +6,7 @@ cycler==0.10.0
 Flask==1.1.1
 idna==2.8
 itsdangerous==1.1.0
-Jinja2==2.10.3
+Jinja2==2.11.3
 kiwisolver==1.1.0
 MarkupSafe==1.1.1
 matplotlib==2.2.4