diff --git a/tox.ini b/tox.ini
index 613319c..ac1b831 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,7 +8,7 @@ basepython = python3
 usedevelop = True
 allowlist_externals = find
                       rm
-deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2024.2}
        -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 passenv = http_proxy,HTTP_PROXY,https_proxy,HTTPS_PROXY,no_proxy,NO_PROXY
@@ -37,7 +37,7 @@ commands =
 
 [testenv:venv]
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2024.2}
   -r{toxinidir}/test-requirements.txt
   -r{toxinidir}/doc/requirements.txt
 commands = {posargs}
@@ -45,7 +45,7 @@ commands = {posargs}
 [testenv:docs]
 skip_install = true
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2024.2}
   -r{toxinidir}/doc/requirements.txt
 commands =
   rm -rf doc/build/html
@@ -78,7 +78,7 @@ commands =
 [testenv:linters]
 passenv = HOME
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2024.2}
   -r{toxinidir}/test-requirements.txt
   -r{toxinidir}/doc/requirements.txt
 allowlist_externals = bash