diff --git a/requirements.txt b/requirements.txt
index 87e82ad3..21fc544a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,4 @@
 # Packages needed for using this library.
-pbr>=0.6,!=0.7,<1.0
 anyjson>=0.3.3
 iso8601>=0.1.9
 # Python 2->3 compatibility library.