diff --git a/requirements.txt b/requirements.txt
index 666e20c87f..8837e2a7d3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 d2to1>=0.2.10,<0.3
-pbr>=0.5,<0.6
+pbr>=0.5.16,<0.6
 SQLAlchemy>=0.7,<=0.7.99
 eventlet
 extras
diff --git a/setup.py b/setup.py
index b3e85a7150..74e2f57625 100644
--- a/setup.py
+++ b/setup.py
@@ -17,5 +17,5 @@
 import setuptools
 
 setuptools.setup(
-    setup_requires=['d2to1>=0.2.10,<0.3', 'pbr>=0.5.10,<0.6'],
+    setup_requires=['d2to1>=0.2.10,<0.3', 'pbr>=0.5.16,<0.6'],
     d2to1=True)