diff --git a/tox.ini b/tox.ini
index bd45fc882..2ee4d5bac 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,9 +6,7 @@ skipsdist = True
 [testenv]
 usedevelop = True
 whitelist_externals = find
-install_command =
-                   pip install -U --force-reinstall -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
-
+install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
 setenv =
    VIRTUAL_ENV={envdir}
 deps = -r{toxinidir}/test-requirements.txt