diff --git a/requirements.txt b/requirements.txt
index 11359b7b0b..835c5ecb6d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ python-keystoneclient>=0.10.0
 python-swiftclient>=2.2.0
 stevedore>=1.0.0  # Apache-2.0
 pysendfile==2.0.0
-websockify>=0.5.1,<0.7
+websockify>=0.6.0,<0.7
 oslo.config>=1.4.0  # Apache-2.0
 oslo.db>=1.0.0  # Apache-2.0
 oslo.rootwrap>=1.3.0