diff --git a/requirements.txt b/requirements.txt
index 48e14090..73988c22 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ mock>=2.0 # BSD
 networkx>=1.10 # BSD
 oslo.concurrency>=3.8.0 # Apache-2.0
 oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
-oslo.db!=4.13.1,!=4.13.2,>=4.10.0 # Apache-2.0
+oslo.db!=4.13.1,!=4.13.2,>=4.11.0 # Apache-2.0
 oslo.messaging>=5.2.0 # Apache-2.0
 oslo.middleware>=3.0.0 # Apache-2.0
 oslo.policy>=1.15.0 # Apache-2.0
@@ -24,7 +24,7 @@ oslo.serialization>=1.10.0 # Apache-2.0
 oslo.service>=1.10.0 # Apache-2.0
 osprofiler>=1.4.0 # Apache-2.0
 paramiko>=2.0 # LGPLv2.1+
-pbr>=1.6 # Apache-2.0
+pbr>=1.8 # Apache-2.0
 pecan!=1.0.2,!=1.0.3,!=1.0.4,!=1.2,>=1.0.0 # BSD
 python-barbicanclient>=4.0.0 # Apache-2.0
 python-ceilometerclient>=2.5.0 # Apache-2.0