diff --git a/legacy/requirements.txt b/legacy/requirements.txt
index 2a9c809..f191b78 100644
--- a/legacy/requirements.txt
+++ b/legacy/requirements.txt
@@ -4,7 +4,7 @@ Delorean==0.6.0
 Flask==0.12.1
 humanize==0.5.1
 itsdangerous==0.24
-Jinja2==2.9.6
+Jinja2==2.11.3
 MarkupSafe==1.0
 pymongo==3.4.0
 pyserial==3.3