diff --git a/.zuul.yaml b/.zuul.yaml
index 9663025..1507d60 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -14,50 +14,34 @@
         - openstack-tox-pep8:
             required-projects:
               - name: openstack/requirements
-                override-checkout: stable/2024.2
-        - openstack-tox-py38:
-            required-projects:
-              - name: openstack/requirements
-                override-checkout: stable/2024.2
-        - openstack-tox-py39:
-            required-projects:
-              - name: openstack/requirements
-                override-checkout: stable/2024.2
+                override-checkout: stable/2025.1
         - openstack-tox-py310:
             required-projects:
               - name: openstack/requirements
-                override-checkout: stable/2024.2
+                override-checkout: stable/2025.1
         - openstack-tox-py311:
             required-projects:
               - name: openstack/requirements
-                override-checkout: stable/2024.2
+                override-checkout: stable/2025.1
         - openstack-tox-py312:
             required-projects:
               - name: openstack/requirements
-                override-checkout: stable/2024.2
+                override-checkout: stable/2025.1
     gate:
       jobs:
         - openstack-tox-pep8:
             required-projects:
               - name: openstack/requirements
-                override-checkout: stable/2024.2
-        - openstack-tox-py38:
-            required-projects:
-              - name: openstack/requirements
-                override-checkout: stable/2024.2
-        - openstack-tox-py39:
-            required-projects:
-              - name: openstack/requirements
-                override-checkout: stable/2024.2
+                override-checkout: stable/2025.1
         - openstack-tox-py310:
             required-projects:
               - name: openstack/requirements
-                override-checkout: stable/2024.2
+                override-checkout: stable/2025.1
         - openstack-tox-py311:
             required-projects:
               - name: openstack/requirements
-                override-checkout: stable/2024.2
+                override-checkout: stable/2025.1
         - openstack-tox-py312:
             required-projects:
               - name: openstack/requirements
-                override-checkout: stable/2024.2
+                override-checkout: stable/2025.1
diff --git a/tox.ini b/tox.ini
index ea61ad1..b307be3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py38,pep8,py39,py310,py312
+envlist = pep8,py310,py311,py312
 minversion = 2.3.2
 skipsdist = True
 ignore_basepython_conflict = True
@@ -13,7 +13,7 @@ setenv = VIRTUAL_ENV={envdir}
 usedevelop = True
 install_command = pip install {opts} {packages}
 deps =
-    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2024.2}
+    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2025.1}
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/test-requirements.txt
 commands = stestr run {posargs}