diff --git a/requirements.txt b/requirements.txt
index 1d18dd3..6de9f4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-pbr>=2.0 # Apache-2.0
+pbr!=2.1.0,>=2.0.0 # Apache-2.0