diff --git a/requirements.txt b/requirements.txt
index f5691d6..1866191 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,5 +9,5 @@ pecan>=1.0.0
 WSME>=0.7
 argparse
 oslo.config>=2.3.0 # Apache-2.0
-python-keystoneclient>=1.6.0
+python-keystoneclient!=1.8.0,>=1.6.0
 Flask<1.0,>=0.10