diff --git a/tox.ini b/tox.ini
index cf7923f7..4bd47a74 100644
--- a/tox.ini
+++ b/tox.ini
@@ -32,7 +32,7 @@ setenv =
 
 [testenv:docs]
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2023.2}
   -r{toxinidir}/doc/requirements.txt
   -r{toxinidir}/test-requirements.txt
 commands =