diff --git a/devel/create-github-release b/devel/create-github-release
index 7b792e2d..ca247334 100755
--- a/devel/create-github-release
+++ b/devel/create-github-release
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 shopt -s extglob
 
diff --git a/devel/generate-doc b/devel/generate-doc
index 11ea7da7..0fd0051d 100755
--- a/devel/generate-doc
+++ b/devel/generate-doc
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 
 devel="$(dirname "$0")"
diff --git a/devel/pyoxidizer b/devel/pyoxidizer
index fcc1d397..8f8bb085 100755
--- a/devel/pyoxidizer
+++ b/devel/pyoxidizer
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 shopt -s extglob failglob
 
diff --git a/devel/pytest b/devel/pytest
index 4accf873..859bd71b 100755
--- a/devel/pytest
+++ b/devel/pytest
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 
 cd "$(dirname "$0")/.."
diff --git a/devel/reflow-markdown b/devel/reflow-markdown
index 2c94950b..10339eaf 100755
--- a/devel/reflow-markdown
+++ b/devel/reflow-markdown
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Reflows paragraphs in Markdown to single long lines while preserving verbatim
 # code blocks, lists, and what not.
 set -euo pipefail
diff --git a/devel/release b/devel/release
index 8c18d2b4..40688337 100755
--- a/devel/release
+++ b/devel/release
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 
 devel="$(dirname "$0")"
diff --git a/devel/rtd-pre-build b/devel/rtd-pre-build
index 86860660..9577f7da 100755
--- a/devel/rtd-pre-build
+++ b/devel/rtd-pre-build
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 
 devel="$(dirname "$0")"
diff --git a/devel/setup-venv b/devel/setup-venv
index 4eb05334..b5233f22 100755
--- a/devel/setup-venv
+++ b/devel/setup-venv
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 
 base="$(cd "$(dirname "$0")/.."; pwd)"
diff --git a/devel/update-version b/devel/update-version
index 68fcffdf..6c255fd1 100755
--- a/devel/update-version
+++ b/devel/update-version
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 
 devel="$(dirname "$0")"
diff --git a/devel/venv-run b/devel/venv-run
index 420d966e..6d1f4bab 100755
--- a/devel/venv-run
+++ b/devel/venv-run
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # shellcheck disable=SC1091
 set -eou pipefail
 
diff --git a/devel/within-container b/devel/within-container
index 4d0c53dd..0847ca37 100755
--- a/devel/within-container
+++ b/devel/within-container
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # usage: devel/within-container <image> [<argv0> [<argv1> [...]]]
 set -euo pipefail