diff --git a/.gitreview b/.gitreview
index d171fc8a..44702c2d 100644
--- a/.gitreview
+++ b/.gitreview
@@ -2,3 +2,4 @@
 host=review.opendev.org
 port=29418
 project=openstack/tosca-parser.git
+defaultbranch=stable/2025.2
diff --git a/tox.ini b/tox.ini
index b9b666f4..d6f086af 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,7 +17,7 @@ passenv =
 	no_proxy
 	NO_PROXY
 deps =
-       -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+       -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2025.2}
        -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands = stestr run --slowest '{posargs}'