diff --git a/charmcraft.yaml b/charmcraft.yaml
index 2df13f1..c31dea1 100644
--- a/charmcraft.yaml
+++ b/charmcraft.yaml
@@ -22,9 +22,3 @@ bases:
       - name: ubuntu
         channel: "22.04"
         architectures: [amd64, s390x, ppc64el, arm64]
-      - name: ubuntu
-        channel: "23.04"
-        architectures: [amd64, s390x, ppc64el, arm64]
-      - name: ubuntu
-        channel: "23.10"
-        architectures: [amd64, s390x, ppc64el, arm64]
diff --git a/src/metadata.yaml b/src/metadata.yaml
index 7936b57..ab665cd 100644
--- a/src/metadata.yaml
+++ b/src/metadata.yaml
@@ -9,11 +9,9 @@ description: |
   OpenStack Train or later is required.
 docs: https://discourse.charmhub.io/t/placement-docs-index/10547
 tags:
-- openstack
+  - openstack
 series:
-- jammy
-- lunar
-- mantic
+  - jammy
 subordinate: false
 requires:
   shared-db:
diff --git a/src/tests/bundles/jammy-antelope.yaml b/src/tests/bundles/jammy-antelope.yaml
index 432994a..fad8940 100644
--- a/src/tests/bundles/jammy-antelope.yaml
+++ b/src/tests/bundles/jammy-antelope.yaml
@@ -73,7 +73,7 @@ applications:
       openstack-origin: *openstack-origin
     to:
       - '4'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   keystone:
     charm: ch:keystone
@@ -83,7 +83,7 @@ applications:
       admin-password: openstack
     to:
       - '5'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-api:
     charm: ch:neutron-api
@@ -96,11 +96,11 @@ applications:
       neutron-security-groups: true
     to:
       - '6'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-openvswitch:
     charm: ch:neutron-openvswitch
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-gateway:
     charm: ch:neutron-gateway
@@ -110,7 +110,7 @@ applications:
       bridge-mappings: physnet1:br-ex
     to:
       - '7'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   nova-cloud-controller:
     charm: ch:nova-cloud-controller
@@ -121,7 +121,7 @@ applications:
       debug: true
     to:
       - '8'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   nova-compute:
     charm: ch:nova-compute
@@ -135,7 +135,7 @@ applications:
       debug: true
     to:
       - '9'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   placement:
     charm: ../../../placement.charm
diff --git a/src/tests/bundles/jammy-bobcat.yaml b/src/tests/bundles/jammy-bobcat.yaml
index 6287309..ecab556 100644
--- a/src/tests/bundles/jammy-bobcat.yaml
+++ b/src/tests/bundles/jammy-bobcat.yaml
@@ -73,7 +73,7 @@ applications:
       openstack-origin: *openstack-origin
     to:
       - '4'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   keystone:
     charm: ch:keystone
@@ -83,7 +83,7 @@ applications:
       admin-password: openstack
     to:
       - '5'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-api:
     charm: ch:neutron-api
@@ -96,11 +96,11 @@ applications:
       neutron-security-groups: true
     to:
       - '6'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-openvswitch:
     charm: ch:neutron-openvswitch
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-gateway:
     charm: ch:neutron-gateway
@@ -110,7 +110,7 @@ applications:
       bridge-mappings: physnet1:br-ex
     to:
       - '7'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   nova-cloud-controller:
     charm: ch:nova-cloud-controller
@@ -121,7 +121,7 @@ applications:
       debug: true
     to:
       - '8'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   nova-compute:
     charm: ch:nova-compute
@@ -135,7 +135,7 @@ applications:
       debug: true
     to:
       - '9'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   placement:
     charm: ../../../placement.charm
diff --git a/src/tests/bundles/mantic-bobcat.yaml b/src/tests/bundles/jammy-caracal.yaml
similarity index 95%
rename from src/tests/bundles/mantic-bobcat.yaml
rename to src/tests/bundles/jammy-caracal.yaml
index 077bbfe..f855e01 100644
--- a/src/tests/bundles/mantic-bobcat.yaml
+++ b/src/tests/bundles/jammy-caracal.yaml
@@ -1,9 +1,9 @@
 variables:
-  openstack-origin: &openstack-origin distro
+  openstack-origin: &openstack-origin cloud:jammy-caracal
 
 local_overlay_enabled: False
 
-series: mantic
+series: jammy
 
 comment:
 - 'machines section to decide order of deployment. database sooner = faster'
@@ -73,7 +73,7 @@ applications:
       openstack-origin: *openstack-origin
     to:
       - '4'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   keystone:
     charm: ch:keystone
@@ -83,7 +83,7 @@ applications:
       admin-password: openstack
     to:
       - '5'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-api:
     charm: ch:neutron-api
@@ -96,11 +96,11 @@ applications:
       neutron-security-groups: true
     to:
       - '6'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-openvswitch:
     charm: ch:neutron-openvswitch
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-gateway:
     charm: ch:neutron-gateway
@@ -110,7 +110,7 @@ applications:
       bridge-mappings: physnet1:br-ex
     to:
       - '7'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   nova-cloud-controller:
     charm: ch:nova-cloud-controller
@@ -121,7 +121,7 @@ applications:
       debug: true
     to:
       - '8'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   nova-compute:
     charm: ch:nova-compute
@@ -135,7 +135,7 @@ applications:
       debug: true
     to:
       - '9'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   placement:
     charm: ../../../placement.charm
diff --git a/src/tests/bundles/lunar-antelope.yaml b/src/tests/bundles/noble-caracal.yaml
similarity index 96%
rename from src/tests/bundles/lunar-antelope.yaml
rename to src/tests/bundles/noble-caracal.yaml
index e0d1769..8f5aa52 100644
--- a/src/tests/bundles/lunar-antelope.yaml
+++ b/src/tests/bundles/noble-caracal.yaml
@@ -3,7 +3,7 @@ variables:
 
 local_overlay_enabled: False
 
-series: lunar
+series: noble
 
 comment:
 - 'machines section to decide order of deployment. database sooner = faster'
@@ -73,7 +73,7 @@ applications:
       openstack-origin: *openstack-origin
     to:
       - '4'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   keystone:
     charm: ch:keystone
@@ -83,7 +83,7 @@ applications:
       admin-password: openstack
     to:
       - '5'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-api:
     charm: ch:neutron-api
@@ -96,11 +96,11 @@ applications:
       neutron-security-groups: true
     to:
       - '6'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-openvswitch:
     charm: ch:neutron-openvswitch
-    channel: latest/edge
+    channel: 2024.1/edge
 
   neutron-gateway:
     charm: ch:neutron-gateway
@@ -110,7 +110,7 @@ applications:
       bridge-mappings: physnet1:br-ex
     to:
       - '7'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   nova-cloud-controller:
     charm: ch:nova-cloud-controller
@@ -121,7 +121,7 @@ applications:
       debug: true
     to:
       - '8'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   nova-compute:
     charm: ch:nova-compute
@@ -135,7 +135,7 @@ applications:
       debug: true
     to:
       - '9'
-    channel: latest/edge
+    channel: 2024.1/edge
 
   placement:
     charm: ../../../placement.charm
diff --git a/src/tests/tests.yaml b/src/tests/tests.yaml
index 97cc31d..93997e6 100644
--- a/src/tests/tests.yaml
+++ b/src/tests/tests.yaml
@@ -18,16 +18,12 @@ configure:
 
 gate_bundles:
   - jammy-antelope
-
-smoke_bundles:
-  - jammy-antelope
-
-dev_bundles:
   - jammy-bobcat
-  - lunar-antelope
-  - mantic-bobcat
-
+  - jammy-caracal
+smoke_bundles:
+  - jammy-caracal
+dev_bundles:
+  - noble-caracal
 tests_options:
   force_deploy:
-    - lunar-antelope
-    - mantic-bobcat
+    - noble-caracal
diff --git a/src/tox.ini b/src/tox.ini
index 8ffff0f..2ddcccd 100644
--- a/src/tox.ini
+++ b/src/tox.ini
@@ -25,7 +25,9 @@ passenv =
     CS_*
     OS_*
     TEST_*
-deps = -r{toxinidir}/test-requirements.txt
+deps =
+    -c {env:TEST_CONSTRAINTS_FILE:https://raw.githubusercontent.com/openstack-charmers/zaza-openstack-tests/master/constraints/constraints-2024.1.txt}
+    -r{toxinidir}/test-requirements.txt
 
 [testenv:pep8]
 basepython = python3
diff --git a/tox.ini b/tox.ini
index c11375e..3e44bd9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -61,12 +61,16 @@ commands =
 
 [testenv:py3]
 basepython = python3
-deps = -r{toxinidir}/test-requirements.txt
+deps =
+    -c {env:TEST_CONSTRAINTS_FILE:https://raw.githubusercontent.com/openstack-charmers/zaza-openstack-tests/master/constraints/constraints-2024.1.txt}
+    -r{toxinidir}/test-requirements.txt
 commands = stestr run --slowest {posargs}
 
 [testenv:py310]
 basepython = python3.10
-deps = -r{toxinidir}/test-requirements.txt
+deps =
+    -c {env:TEST_CONSTRAINTS_FILE:https://raw.githubusercontent.com/openstack-charmers/zaza-openstack-tests/master/constraints/constraints-2024.1.txt}
+    -r{toxinidir}/test-requirements.txt
 commands = stestr run --slowest {posargs}
 
 [testenv:pep8]
@@ -79,7 +83,9 @@ commands = flake8 {posargs} src unit_tests
 # Technique based heavily upon
 # https://github.com/openstack/nova/blob/master/tox.ini
 basepython = python3
-deps = -r{toxinidir}/requirements.txt
+deps =
+    -c {env:TEST_CONSTRAINTS_FILE:https://raw.githubusercontent.com/openstack-charmers/zaza-openstack-tests/master/constraints/constraints-2024.1.txt}
+    -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 setenv =
     {[testenv]setenv}