diff --git a/requirements.txt b/requirements.txt
index 8297557..ebdb78a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ castellan>=0.4.0 # Apache-2.0
 eventlet!=0.18.3,>=0.18.2 # MIT
 Flask!=0.11,<1.0,>=0.10 # BSD
 iso8601>=0.1.11 # MIT
-Jinja2>=2.8 # BSD License (3 clause)
+Jinja2!=2.9.0,!=2.9.1,!=2.9.2,!=2.9.3,!=2.9.4,>=2.8 # BSD License (3 clause)
 jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT
 keystoneauth1>=2.16.0 # Apache-2.0
 keystonemiddleware>=4.12.0 # Apache-2.0