diff --git a/lower-constraints.txt b/lower-constraints.txt
index 946422a66c..662cba2d9f 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -1,6 +1,7 @@
 cachetools==2.1.0
 cotyledon==1.3.0
 coverage==4.0
+eventlet==0.30.1
 fixtures==3.0.0
 futurist==1.8.0
 gabbi==1.30.0
@@ -9,21 +10,21 @@ jsonpath-rw-ext==1.1.3
 keystoneauth1==3.18.0
 lxml==4.5.1
 msgpack==0.5.2
-os-win==3.0.0
+os-win==5.4.0
 oslo.cache==1.26.0
-oslo.concurrency==3.26.0
-oslo.config==6.0.0
+oslo.concurrency==3.29.0
+oslo.config==8.6.0
 oslo.i18n==3.15.3
 oslo.log==3.36.0
-oslo.messaging==8.0.0
+oslo.messaging==10.3.0
 oslo.privsep==1.32.0
 oslo.reports==1.18.0
 oslo.rootwrap==2.0.0
-oslo.utils==4.5.0
+oslo.utils==4.7.0
 oslo.vmware==2.17.0
-oslotest==3.2.0
+oslotest==3.8.0
 pbr==2.0.0
-pyOpenSSL==17.1.0
+pyOpenSSL==17.5.0
 pysnmp==4.2.3
 python-cinderclient==3.3.0
 python-glanceclient==2.8.0
@@ -34,7 +35,7 @@ python-novaclient==9.1.0
 python-swiftclient==3.2.0
 python-zaqarclient==1.3.0
 PyYAML==5.1
-requests==2.14.2
+requests==2.25.1
 requests-aws==0.1.4
 six==1.10.0
 stestr==2.0.0
diff --git a/requirements.txt b/requirements.txt
index cd83aa386a..ffbf4258fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,16 +8,16 @@ futurist>=1.8.0 # Apache-2.0
 jsonpath-rw-ext>=1.1.3 # Apache-2.0
 lxml>=4.5.1 # BSD
 msgpack>=0.5.2 # Apache-2.0
-oslo.concurrency>=3.26.0 # Apache-2.0
-oslo.config>=6.0.0 # Apache-2.0
+oslo.concurrency>=3.29.0 # Apache-2.0
+oslo.config>=8.6.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
 oslo.log>=3.36.0 # Apache-2.0
 oslo.reports>=1.18.0 # Apache-2.0
 oslo.rootwrap>=2.0.0 # Apache-2.0
 pbr>=2.0.0 # Apache-2.0
-oslo.messaging>=8.0.0 # Apache-2.0
+oslo.messaging>=10.3.0 # Apache-2.0
 oslo.upgradecheck>=0.1.1 # Apache-2.0
-oslo.utils>=3.37.0 # Apache-2.0
+oslo.utils>=4.7.0 # Apache-2.0
 oslo.privsep>=1.32.0 # Apache-2.0
 pysnmp<5.0.0,>=4.2.3 # BSD
 python-glanceclient>=2.8.0 # Apache-2.0
@@ -28,7 +28,7 @@ python-novaclient>=9.1.0 # Apache-2.0
 python-swiftclient>=3.2.0 # Apache-2.0
 python-cinderclient>=3.3.0  # Apache-2.0
 PyYAML>=5.1 # MIT
-requests!=2.9.0,>=2.8.1 # Apache-2.0
+requests>=2.25.1 # Apache-2.0
 stevedore>=1.20.0 # Apache-2.0
 tenacity>=6.3.1,<7.0.0  # Apache-2.0
 tooz[zake]>=1.47.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 755b386d30..adb4c60f72 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,12 +3,13 @@
 # process, which may cause wedges in the gate later.
 
 coverage!=4.4,>=4.0 # Apache-2.0
+eventlet>=0.30.1 # MIT
 fixtures>=3.0.0 # Apache-2.0/BSD
 os-win>=3.0.0 # Apache-2.0
 oslo.messaging[kafka]>=8.0.0 # Apache-2.0
-oslotest>=3.2.0 # Apache-2.0
+oslotest>=3.8.0 # Apache-2.0
 oslo.vmware>=2.17.0 # Apache-2.0
-pyOpenSSL>=17.1.0 # Apache-2.0
+pyOpenSSL>=17.5.0 # Apache-2.0
 testscenarios>=0.4 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT
 gabbi>=1.30.0 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index 5b569ef631..529f0ddc16 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 minversion = 3.18.0
 skipsdist = True
-envlist = py{36,38},pep8
+envlist = py{36,38},pep8,lower-constraints
 ignore_basepython_conflict=true
 
 [testenv]