diff --git a/lower-constraints.txt b/lower-constraints.txt
index 7e1720ce..1e9ba06b 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -37,7 +37,7 @@ msgpack==0.5.6
 netaddr==0.7.19
 netifaces==0.10.6
 openstackdocstheme==1.18.1
-os-brick==2.2.0
+os-brick==2.6.0
 os-client-config==1.29.0
 oslo.concurrency==3.26.0
 oslo.config==5.2.0
@@ -56,7 +56,7 @@ prettytable==0.7.2
 Pygments==2.2.0
 pyparsing==2.2.0
 pyperclip==1.6.0
-python-cinderclient==3.3.0
+python-cinderclient==4.1.0
 python-keystoneclient==3.8.0
 python-mimeparse==1.6.0
 python-subunit==1.0.0
diff --git a/setup.cfg b/setup.cfg
index 9dcc3158..35665f9a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -62,8 +62,8 @@ swift =
   httplib2>=0.9.1 # MIT
   python-swiftclient>=3.2.0 # Apache-2.0
 cinder =
-  python-cinderclient>=3.3.0 # Apache-2.0
-  os-brick>=2.2.0 # Apache-2.0
+  python-cinderclient>=4.1.0 # Apache-2.0
+  os-brick>=2.6.0 # Apache-2.0
   oslo.rootwrap>=5.8.0 # Apache-2.0
   oslo.privsep>=1.23.0 # Apache-2.0
 s3 =
diff --git a/test-requirements.txt b/test-requirements.txt
index 60de638f..e8fe8d0c 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -25,7 +25,7 @@ boto3>=1.9.199 # Apache-2.0
 oslo.vmware>=2.17.0 # Apache-2.0
 httplib2>=0.9.1 # MIT
 python-swiftclient>=3.2.0 # Apache-2.0
-python-cinderclient>=3.3.0 # Apache-2.0
-os-brick>=2.2.0 # Apache-2.0
+python-cinderclient>=4.1.0 # Apache-2.0
+os-brick>=2.6.0 # Apache-2.0
 oslo.rootwrap>=5.8.0 # Apache-2.0
 oslo.privsep>=1.23.0 # Apache-2.0