diff --git a/requirements.txt b/requirements.txt
index 27704b5..1a3b61d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@
 # adding a new feature to oslo.serialization means adding a new dependency,
 # that is a likely indicator that the feature belongs somewhere else.
 
-pbr<2.0,>=1.6
+pbr>=1.6
 Babel>=1.3
 six>=1.9.0
 msgpack-python>=0.4.0
diff --git a/setup.py b/setup.py
index d8080d0..782bb21 100644
--- a/setup.py
+++ b/setup.py
@@ -25,5 +25,5 @@ except ImportError:
     pass
 
 setuptools.setup(
-    setup_requires=['pbr>=1.3'],
+    setup_requires=['pbr>=1.8'],
     pbr=True)