diff --git a/requirements.txt b/requirements.txt
index 3c0f9e167..de99e5aac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,8 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
+pbr>=0.6,!=0.7,<1.0
+
 oslo.config>=1.4.0  # Apache-2.0
 oslo.utils>=1.0.0                       # Apache-2.0
 oslo.serialization>=1.0.0               # Apache-2.0