diff --git a/bin/cherry-py-repo-from-template b/bin/cherry-py-repo-from-template
--- a/bin/cherry-py-repo-from-template
+++ b/bin/cherry-py-repo-from-template
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 TEMPLATE_DIR="swh-py-template"
 
diff --git a/bin/debpkg-bootstrap-branches b/bin/debpkg-bootstrap-branches
--- a/bin/debpkg-bootstrap-branches
+++ b/bin/debpkg-bootstrap-branches
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -e
 set -x
diff --git a/bin/debpkg-bump-version b/bin/debpkg-bump-version
--- a/bin/debpkg-bump-version
+++ b/bin/debpkg-bump-version
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -e
 
diff --git a/bin/init-py-repo b/bin/init-py-repo
--- a/bin/init-py-repo
+++ b/bin/init-py-repo
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 TEMPLATE_DIR="swh-py-template"
 
diff --git a/bin/ls-all-repos b/bin/ls-all-repos
--- a/bin/ls-all-repos
+++ b/bin/ls-all-repos
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 cd "$( dirname "$0" )/.."
 
diff --git a/bin/ls-py-modules b/bin/ls-py-modules
--- a/bin/ls-py-modules
+++ b/bin/ls-py-modules
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 LS_REPOS="bin/ls-all-repos"
 if ! [ -x "$LS_REPOS" ] ; then
diff --git a/bin/make-package b/bin/make-package
--- a/bin/make-package
+++ b/bin/make-package
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 usage() {
     echo "Usage: $0 [-b|--build] [-u|--upload] [-d|--distribution <all|unstable|stable>] SWH_PACKAGE"
diff --git a/bin/pip-ls-deps b/bin/pip-ls-deps
--- a/bin/pip-ls-deps
+++ b/bin/pip-ls-deps
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 LS_MODS="bin/ls-py-modules"
 if ! [ -x "$LS_MODS" ] ; then
diff --git a/bin/pip-swh-packages b/bin/pip-swh-packages
--- a/bin/pip-swh-packages
+++ b/bin/pip-swh-packages
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 cd "$( dirname $0 )/.."
 
diff --git a/bin/py-depgraph b/bin/py-depgraph
--- a/bin/py-depgraph
+++ b/bin/py-depgraph
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # generate dependency graph (in DOT(1) format) for all known python modules
 #
diff --git a/bin/pypi-check-versions b/bin/pypi-check-versions
--- a/bin/pypi-check-versions
+++ b/bin/pypi-check-versions
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 mr -m run bash -c '
 if [[ $(basename $PWD) =~ ^(swh-docs|swh-py-template)$ ]]; then
 echo SKIP $(basename $PWD)
diff --git a/bin/update b/bin/update
--- a/bin/update
+++ b/bin/update
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 mrconf=$(readlink -f .mrconfig)
 mrtrust="${HOME}/.mrtrust"