diff --git a/ci/manifest.sh b/ci/manifest.sh
index 28f7c013..7c13917c 100755
--- a/ci/manifest.sh
+++ b/ci/manifest.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euxo pipefail
 IFS=$'\n\t'
 cd "$(dirname "$0")"/..
diff --git a/main.sh b/main.sh
index 84bbf572..a48d81bc 100755
--- a/main.sh
+++ b/main.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 IFS=$'\n\t'
 
diff --git a/tools/manifest.sh b/tools/manifest.sh
index bce3a24d..ad40ddda 100755
--- a/tools/manifest.sh
+++ b/tools/manifest.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 IFS=$'\n\t'
 cd "$(dirname "$0")"/..
diff --git a/tools/publish.sh b/tools/publish.sh
index f0f4b614..4aa6e2dc 100755
--- a/tools/publish.sh
+++ b/tools/publish.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 IFS=$'\n\t'
 cd "$(dirname "$0")"/..
diff --git a/tools/tidy.sh b/tools/tidy.sh
index df52d593..ca770bdb 100755
--- a/tools/tidy.sh
+++ b/tools/tidy.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # shellcheck disable=SC2046
 set -euo pipefail
 IFS=$'\n\t'