diff --git a/requirements.txt b/requirements.txt
index a35fc4c..b6062bd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-pbr>=1.8.0,<2.0
+pbr>=1.8.0
 six>=1.5.2
 extras
 python-daemon>=2.0.4