diff --git a/10.program-structure/requirements.txt b/10.program-structure/requirements.txt
old mode 100755
new mode 100644
index 3de814b..c2bc46a
--- a/10.program-structure/requirements.txt
+++ b/10.program-structure/requirements.txt
@@ -10,7 +10,7 @@ Flask-Moment==0.5.1
 Flask-SQLAlchemy==2.2
 Flask-WTF==0.14.2
 itsdangerous==0.24
-Jinja2==2.9.6
+Jinja2==2.11.3
 Mako==1.0.7
 MarkupSafe==1.0
 python-dateutil==2.6.1