diff --git a/requirements.txt b/requirements.txt
index 914910f..98fc45a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ Flask==0.12.2
 Flask-HTTPAuth==3.2.3
 Flask-RESTful==0.3.6
 itsdangerous==0.24
-Jinja2==2.9.6
+Jinja2==2.11.3
 lxml==4.1.0
 MarkupSafe==1.0
 olefile==0.44