diff --git a/requirements.txt b/requirements.txt
index 08745a78e..7c6a6c047 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ d2to1>=0.2.10,<0.3
 pbr>=0.5.16,<0.6
 
 eventlet>=0.9.12
-falcon>=0.1.4
+falcon>=0.1.6,<0.1.7
 iso8601>=0.1.4
 msgpack-python
 oslo.config>=1.1.0