diff --git a/tox.ini b/tox.ini
index 26cd68c031..e08364f456 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,7 +35,7 @@ commands = bash -c "find {toxinidir}             \
 
 [testenv:docs]
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2024.1}
   -r{toxinidir}/doc/requirements.txt
 allowlist_externals = bash
 setenv =