diff --git a/requirements.txt b/requirements.txt
index b17eeac..10fd78c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 Markdown==2.1.1
 cogapp==2.3
-Jinja2==2.6
+Jinja2==2.11.3
 gevent
 pyzmq