diff --git a/tox.ini b/tox.ini
index 1d75dfc8d..61e877780 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,9 +5,7 @@ skipsdist = True
 
 [testenv]
 usedevelop = True
-install_command =
-                  constraints: {[testenv:common-constraints]install_command}
-                  pip install -U {opts} {packages}
+install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
 whitelist_externals = bash
                       find
                       rm
@@ -22,44 +20,26 @@ commands =
   bash tools/pretty_tox.sh '{posargs}'
 
 
-[testenv:common-constraints]
-install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
-
 [testenv:pep8]
 commands =
   doc8 -e .rst doc/source/ CONTRIBUTING.rst HACKING.rst README.rst
   bash tools/flake8wrap.sh {posargs}
   bandit -r zun -x tests -n5 -ll
 
-[testenv:pep8-constraints]
-commands = flake8 {posargs}
-
 [testenv:venv]
 commands = {posargs}
 
-[testenv:venv-constraints]
-commands = {posargs}
-
 [testenv:cover]
 commands = python setup.py test --coverage --testr-args='{posargs}'
 
-[testenv:cover-constraints]
-commands = python setup.py test --coverage --testr-args='{posargs}'
-
 [testenv:docs]
 commands =
     doc8 -e .rst doc/source/ CONTRIBUTING.rst HACKING.rst README.rst
     python setup.py build_sphinx
 
-[testenv:docs-constraints]
-commands = python setup.py build_sphinx
-
 [testenv:debug]
 commands = oslo_debug_helper {posargs}
 
-[testenv:debug-constraints]
-commands = oslo_debug_helper {posargs}
-
 [flake8]
 show-source = True
 builtins = _