diff --git a/requirements.txt b/requirements.txt
index 33ac7c6..fd67fab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,8 +2,8 @@
 # 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
 
 ddt>=1.0.1 # MIT
-oslo.log>=3.30.0 # Apache-2.0
-tempest>=17.1.0 # Apache-2.0
\ No newline at end of file
+oslo.log>=3.36.0 # Apache-2.0
+tempest>=17.1.0 # Apache-2.0