diff --git a/tox.ini b/tox.ini
index 5943000..011d2a7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,6 @@ minversion = 2.0
 [testenv]
 basepython = python3
 usedevelop = True
-install_command = pip install {opts} {packages}
 deps =
        -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
        -r{toxinidir}/requirements.txt