diff --git a/neutron/plugins/openvswitch/agent/xenapi/contrib/build-rpm.sh b/neutron/plugins/openvswitch/agent/xenapi/contrib/build-rpm.sh
index 81b5f3b316b..750bdde2b0a 100755
--- a/neutron/plugins/openvswitch/agent/xenapi/contrib/build-rpm.sh
+++ b/neutron/plugins/openvswitch/agent/xenapi/contrib/build-rpm.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -eux
 
diff --git a/neutron/tests/contrib/gate_hook.sh b/neutron/tests/contrib/gate_hook.sh
index 0f93918a4be..4c777f5251e 100644
--- a/neutron/tests/contrib/gate_hook.sh
+++ b/neutron/tests/contrib/gate_hook.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 
 set -ex
diff --git a/neutron/tests/contrib/post_test_hook.sh b/neutron/tests/contrib/post_test_hook.sh
index fc11f6d2bdf..2c8360a47a7 100644
--- a/neutron/tests/contrib/post_test_hook.sh
+++ b/neutron/tests/contrib/post_test_hook.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -xe
 
diff --git a/run_tests.sh b/run_tests.sh
index 6fe001f5381..a32476c5543 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -eu
 
diff --git a/tools/abandon_old_reviews.sh b/tools/abandon_old_reviews.sh
index a91e1d1c064..2cb08a7d2df 100755
--- a/tools/abandon_old_reviews.sh
+++ b/tools/abandon_old_reviews.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tools/check_unit_test_structure.sh b/tools/check_unit_test_structure.sh
index 1e8a2362f75..0aaa0c3ab36 100755
--- a/tools/check_unit_test_structure.sh
+++ b/tools/check_unit_test_structure.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # This script identifies the unit test modules that do not correspond
 # directly with a module in the code tree.  See TESTING.rst for the
diff --git a/tools/clean.sh b/tools/clean.sh
index 27bc219f9ca..b79f0352692 100755
--- a/tools/clean.sh
+++ b/tools/clean.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 rm -rf ./*.deb ./*.tar.gz ./*.dsc ./*.changes
 rm -rf */*.deb
 rm -rf ./plugins/**/build/ ./plugins/**/dist
diff --git a/tools/configure_for_func_testing.sh b/tools/configure_for_func_testing.sh
index 736cb020793..e04b07f6dd4 100755
--- a/tools/configure_for_func_testing.sh
+++ b/tools/configure_for_func_testing.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tools/copy_api_tests_from_tempest.sh b/tools/copy_api_tests_from_tempest.sh
index 6a3b9f2091b..7084451d334 100755
--- a/tools/copy_api_tests_from_tempest.sh
+++ b/tools/copy_api_tests_from_tempest.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # This script is intended to allow repeatable migration of the neutron
 # api tests from tempest.  The intention is to allow development to
diff --git a/tools/deploy_rootwrap.sh b/tools/deploy_rootwrap.sh
index dbe8ef705e4..0009a42e2b9 100755
--- a/tools/deploy_rootwrap.sh
+++ b/tools/deploy_rootwrap.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tools/misc-sanity-checks.sh b/tools/misc-sanity-checks.sh
index 0b18f86e222..874b3243682 100644
--- a/tools/misc-sanity-checks.sh
+++ b/tools/misc-sanity-checks.sh
@@ -23,22 +23,6 @@ trap "rm -rf $TMPDIR" EXIT
 FAILURES=$TMPDIR/failures
 
 
-check_opinionated_shell () {
-    # The purpose of this function is to avoid casual introduction of more
-    # bash dependency.  Please consider alternatives before committing code
-    # which uses bash specific features.
-
-    # Check that shell scripts are not bash opinionated (ignore comments though)
-    # If you cannot avoid the use of bash, please change the EXPECTED var below.
-    OBSERVED=$(grep -E '^([[:space:]]*[^#[:space:]]|#!).*bash' \
-               tox.ini tools/* | wc -l)
-    EXPECTED=8
-    if [ ${EXPECTED} -ne ${OBSERVED} ]; then
-        echo "Bash usage has been detected!" >>$FAILURES
-    fi
-}
-
-
 check_no_symlinks_allowed () {
     # Symlinks break the package build process, so ensure that they
     # do not slip in, except hidden symlinks.
@@ -74,7 +58,6 @@ check_identical_policy_files () {
 }
 
 # Add your checks here...
-check_opinionated_shell
 check_no_symlinks_allowed
 check_pot_files_errors
 check_identical_policy_files
diff --git a/tools/with_venv.sh b/tools/with_venv.sh
index dea5c5fc2be..5fb07ea8ccb 100755
--- a/tools/with_venv.sh
+++ b/tools/with_venv.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Copyright 2011 OpenStack Foundation.
 # All Rights Reserved.
 #
diff --git a/tox.ini b/tox.ini
index c3bb17f0e4e..32cecacf8f1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -82,7 +82,9 @@ commands=
   flake8
   sh ./tools/coding-checks.sh --pylint '{posargs}'
   neutron-db-manage check_migration
-whitelist_externals = sh
+whitelist_externals =
+  sh
+  bash
 
 [testenv:cover]
 commands =