1 files changed, 1 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index bf0fd8b..dd2323a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,7 +7,7 @@ skipsdist = True
 usedevelop = True
 passenv = ZUUL_CACHE_DIR
           REQUIREMENTS_PIP_LOCATION
-install_command = {toxinidir}/tools/tox_install.sh {env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
+install_command = {toxinidir}/tools/tox_install.sh {env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?h=stable/pike} {opts} {packages}
 setenv =
    VIRTUAL_ENV={envdir}
    BRANCH_NAME=master