diff --git a/service/requirements.txt b/service/requirements.txt
old mode 100755
new mode 100644
index 83fcc55..08422d5
--- a/service/requirements.txt
+++ b/service/requirements.txt
@@ -6,7 +6,7 @@ gevent==1.2.1
 greenlet==0.4.12
 gunicorn==19.7.1
 itsdangerous==0.24
-Jinja2==2.9.6
+Jinja2==2.11.3
 MarkupSafe==1.0
 pyserial==3.3
 python-engineio==1.5.1