diff --git a/requirements.txt b/requirements.txt
index c1f083a..395f8c4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ Flask-Cors==3.0.8
 httplib2==0.17.0
 idna==2.8
 itsdangerous==1.1.0
-Jinja2==2.10.3
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 plantuml==0.3.0
 requests==2.22.0