diff --git a/lower-constraints.txt b/lower-constraints.txt
deleted file mode 100644
index a313fa2e7e..0000000000
--- a/lower-constraints.txt
+++ /dev/null
@@ -1,135 +0,0 @@
-alabaster==0.7.10
-alembic==1.4.2
-amqp==2.5.2
-appdirs==1.4.3
-asn1crypto==0.24.0
-bashate==0.5.1
-bcrypt==3.1.4
-cachetools==2.0.1
-certifi==2018.1.18
-cffi==1.14.0
-chardet==3.0.4
-cliff==2.11.0
-cmd2==0.8.1
-contextlib2==0.5.5
-coverage==5.2.1
-cryptography==2.5
-ddt==1.4.1
-debtcollector==1.19.0
-decorator==4.2.1
-deprecation==2.0
-docutils==0.14
-dogpile.cache==0.6.5
-dulwich==0.19.0
-enum-compat==0.0.2
-eventlet==0.26.1
-extras==1.0.0
-fasteners==0.14.1
-fixtures==3.0.0
-future==0.16.0
-futurist==1.6.0
-greenlet==0.4.16
-idna==2.6
-imagesize==1.0.0
-ipaddress==1.0.17
-iso8601==0.1.12
-Jinja2==2.10
-jmespath==0.9.3
-jsonpatch==1.21
-jsonpointer==2.0
-keystoneauth1==4.2.1
-keystonemiddleware==9.1.0
-kombu==4.6.6
-linecache2==1.0.0
-lxml==4.5.2
-Mako==1.0.7
-MarkupSafe==1.1.1
-monotonic==1.4
-mox3==0.25.0
-msgpack==0.5.6
-munch==2.2.0
-netaddr==0.8.0
-netifaces==0.10.6
-openstacksdk==0.12.0
-os-api-ref==1.4.0
-os-client-config==1.29.0
-os-service-types==1.2.0
-osc-lib==1.10.0
-oslo.cache==1.29.0
-oslo.concurrency==4.3.0
-oslo.config==8.3.2
-oslo.context==3.1.1
-oslo.db==8.4.0
-oslo.i18n==5.0.1
-oslo.log==4.4.0
-oslo.messaging==12.5.0
-oslo.middleware==4.1.1
-oslo.policy==3.7.0
-oslo.reports==2.2.0
-oslo.rootwrap==6.2.0
-oslo.serialization==4.0.1
-oslo.service==2.4.0
-oslo.upgradecheck==1.3.0
-oslo.utils==4.7.0
-oslotest==4.4.1
-osprofiler==3.4.0
-packaging==20.4
-paramiko==2.7.2
-Paste==3.4.3
-PasteDeploy==2.1.0
-pbr==5.5.0
-pika==0.10.0
-pika-pool==0.1.3
-prettytable==0.7.2
-psutil==5.4.3
-psycopg2-binary==2.8.5
-pyasn1==0.4.2
-pycadf==2.7.0
-pycparser==2.18
-Pygments==2.2.0
-pyinotify==0.9.6
-PyMySQL==0.10.0
-PyNaCl==1.2.1
-pyparsing==2.4.7
-pyperclip==1.6.0
-python-cinderclient==3.3.0
-python-dateutil==2.7.0
-python-editor==1.0.3
-python-glanceclient==3.2.2
-python-keystoneclient==4.1.1
-python-mimeparse==1.6.0
-python-neutronclient==6.7.0
-python-novaclient==17.2.1
-python-subunit==1.4.0
-pytz==2018.3
-PyYAML==5.1
-repoze.lru==0.7
-requests==2.23.0
-requests-mock==1.7.0
-requestsexceptions==1.4.0
-retrying==1.2.3
-rfc3986==1.2.0
-Routes==2.4.1
-simplejson==3.13.2
-six==1.15.0
-snowballstemmer==1.2.1
-SQLAlchemy==1.3.17
-sqlalchemy-migrate==0.11.0
-sqlparse==0.2.4
-statsd==3.2.2
-stestr==3.0.1
-stevedore==3.2.2
-Tempita==0.5.2
-tenacity==6.3.1
-testrepository==0.0.20
-testresources==2.0.1
-testscenarios==0.4
-testtools==2.4.0
-tooz==2.7.1
-traceback2==1.4.0
-unittest2==1.1.0
-urllib3==1.22
-vine==1.1.4
-voluptuous==0.11.1
-WebOb==1.8.6
-wrapt==1.10.11
diff --git a/requirements.txt b/requirements.txt
index c37b4a764a..09fbd316c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,7 @@
+# Requirements lower bounds listed here are our best effort to keep them up to
+# date but we do not test them so no guarantee of having them all correct. If
+# you find any incorrect lower bounds, let us know or propose a fix.
+
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
diff --git a/tox.ini b/tox.ini
index 18e0a66d83..02343dc77b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -168,9 +168,3 @@ extension =
     M354 = checks:check_uuid4
     M359 = checks:no_translate_logs
 paths = ./manila/tests/hacking
-
-[testenv:lower-constraints]
-deps =
-  -c{toxinidir}/lower-constraints.txt
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/requirements.txt
diff --git a/zuul.d/project.yaml b/zuul.d/project.yaml
index d1776f4374..5d8d0fca15 100644
--- a/zuul.d/project.yaml
+++ b/zuul.d/project.yaml
@@ -2,7 +2,6 @@
     templates:
       - publish-openstack-docs-pti
       - openstack-cover-jobs
-      - openstack-lower-constraints-jobs
       - openstack-python3-xena-jobs
       - check-requirements
       - release-notes-jobs-python3