diff --git a/lower-constraints.txt b/lower-constraints.txt
index 323a6f90..4fa3bce9 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -1,22 +1,22 @@
 coverage==5.2.1
 ddt==1.2.1
 debtcollector==1.19.0
-eventlet==0.26.1
+eventlet==0.30.1
 mock==3.0.0
 netaddr==0.7.18
 openstackdocstheme==2.2.1
-os-brick==3.1.0
-os-win==5.2.0
-oslo.concurrency==3.29.0
+os-brick==4.3.1
+os-win==5.4.0
+oslo.concurrency==4.4.0
 oslo.config==6.8.0
-oslo.context==2.22.2
-oslo.i18n==3.15.3
-oslo.log==3.36.0
-oslo.serialization==2.21.1
-oslo.service==1.40.1
-oslo.utils==4.7.0
+oslo.context==3.1.1
+oslo.i18n==5.0.1
+oslo.log==4.4.0
+oslo.serialization==4.1.0
+oslo.service==2.5.0
+oslo.utils==4.8.0
 oslotest==3.8.0
-pbr==2.0.0
+pbr==5.5.1
 python-barbicanclient==4.5.2
 python-subunit==1.4.0
 PyMI==1.0.0;sys_platform=='win32'
diff --git a/requirements.txt b/requirements.txt
index abdc9315..4b5a32c3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,18 +2,18 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-pbr!=2.1.0,>=2.0.0 # Apache-2.0
+pbr>=5.5.1 # Apache-2.0
 
-os-brick>=3.1.0 # Apache-2.0
-os-win>=5.2.0 # Apache-2.0
+os-brick>=4.3.1 # Apache-2.0
+os-win>=5.4.0 # Apache-2.0
 oslo.config>=6.8.0 # Apache-2.0
-oslo.log>=3.36.0 # Apache-2.0
-oslo.serialization>=2.21.1 # Apache-2.0
-oslo.service>=1.40.1 # Apache-2.0
-oslo.utils>=4.7.0 # Apache-2.0
-oslo.i18n>=3.15.3 # Apache-2.0
+oslo.log>=4.4.0 # Apache-2.0
+oslo.serialization>=4.1.0 # Apache-2.0
+oslo.service>=2.5.0 # Apache-2.0
+oslo.utils>=4.8.0 # Apache-2.0
+oslo.i18n>=5.0.1 # Apache-2.0
 
 tooz>=1.58.0 # Apache-2.0
 
-eventlet>=0.26.1 # MIT
+eventlet>=0.30.1 # MIT
 python-barbicanclient>=4.5.2 # Apache-2.0