diff --git a/requirements.txt b/requirements.txt
index 05b95f8..c5e8dc5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ gevent==1.2.2
 idna==2.6
 ilock==1.0.2
 itypes==1.1.0
-Jinja2==2.9.6
+Jinja2==2.11.3
 Markdown==2.6.8
 MarkupSafe==1.0
 openapi-codec==1.3.2