diff --git a/requirements.txt b/requirements.txt
index 4c44c4071..455127ee1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-pbr<2.0,>=1.4
+pbr<2.0,>=1.6
 
 futurist>=0.1.2 # Apache-2.0
 oslo.config>=2.1.0 # Apache-2.0