diff --git a/tools/tox_install.sh b/tools/tox_install.sh
deleted file mode 100755
index e61b63a8..00000000
--- a/tools/tox_install.sh
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/usr/bin/env bash
-
-# Client constraint file contains this client version pin that is in conflict
-# with installing the client from source. We should remove the version pin in
-# the constraints file before applying it for from-source installation.
-
-CONSTRAINTS_FILE="$1"
-shift 1
-
-set -e
-
-# NOTE(tonyb): Place this in the tox enviroment's log dir so it will get
-# published to logs.openstack.org for easy debugging.
-localfile="$VIRTUAL_ENV/log/upper-constraints.txt"
-
-if [[ "$CONSTRAINTS_FILE" != http* ]]; then
-    CONSTRAINTS_FILE="file://$CONSTRAINTS_FILE"
-fi
-# NOTE(tonyb): need to add curl to bindep.txt if the project supports bindep
-curl "$CONSTRAINTS_FILE" --insecure --progress-bar --output "$localfile"
-
-pip install -c"$localfile" openstack-requirements
-
-# This is the main purpose of the script: Allow local installation of
-# the current repo. It is listed in constraints file and thus any
-# install will be constrained and we need to unconstrain it.
-edit-constraints "$localfile" -- "$CLIENT_NAME"
-
-pip install -c"$localfile" -U "$@"
-exit $?
diff --git a/tox.ini b/tox.ini
index a28373f9..0f3e3926 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,12 +4,11 @@ distribute = False
 envlist = py35,py27,pep8
 
 [testenv]
-setenv =
-    VIRTUAL_ENV={envdir}
-    BRANCH_NAME=master
-    CLIENT_NAME=oslo.config
-install_command = {toxinidir}/tools/tox_install.sh {env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
-deps = -r{toxinidir}/test-requirements.txt
+install_command = pip install -U {opts} {packages}
+deps =
+  -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
+  -r{toxinidir}/test-requirements.txt
+  -r{toxinidir}/requirements.txt
 commands =
   python setup.py test --coverage --coverage-package-name=oslo_config --slowest --testr-args='{posargs}'
   coverage report --show-missing
@@ -32,7 +31,6 @@ commands = {posargs}
 commands = python setup.py build_sphinx
 
 [testenv:bandit]
-deps = -r{toxinidir}/test-requirements.txt
 commands = bandit -r oslo_config -x tests -n5
 
 [flake8]