diff --git a/tools/build-debug.sh b/tools/build-debug.sh
index 6494307c..877def35 100644
--- a/tools/build-debug.sh
+++ b/tools/build-debug.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -e
 source $(dirname $0)/env.sh
diff --git a/tools/build-iso.sh b/tools/build-iso.sh
index fb65e71a..c810c1e9 100755
--- a/tools/build-iso.sh
+++ b/tools/build-iso.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 
 source $(dirname $0)/env.sh
diff --git a/tools/build-stable-iso.sh b/tools/build-stable-iso.sh
index b78de0b8..270c97b1 100755
--- a/tools/build-stable-iso.sh
+++ b/tools/build-stable-iso.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 
 source $(dirname $0)/env.sh
diff --git a/tools/build.sh b/tools/build.sh
index 1cb27981..0d0e5d9e 100755
--- a/tools/build.sh
+++ b/tools/build.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 
 source $(dirname $0)/env.sh
diff --git a/tools/clean.sh b/tools/clean.sh
index c7e348ed..e005b12c 100755
--- a/tools/clean.sh
+++ b/tools/clean.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 
 source $(dirname $0)/env.sh
diff --git a/tools/debug.sh b/tools/debug.sh
index edce3513..ad05afad 100755
--- a/tools/debug.sh
+++ b/tools/debug.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -e
 source $(dirname $0)/env.sh
diff --git a/tools/env.sh b/tools/env.sh
index 215f0b99..f433d295 100755
--- a/tools/env.sh
+++ b/tools/env.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 export LUNA_ROOT=$(realpath $(dirname $0)/..)
 export LUNA_BASE=$LUNA_ROOT/base
 export PATH=$LUNA_ROOT/toolchain/x86-64-luna/bin:$LUNA_ROOT/toolchain/dist:$PATH
diff --git a/tools/gdb.sh b/tools/gdb.sh
index 680c6b27..f0363a98 100644
--- a/tools/gdb.sh
+++ b/tools/gdb.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -e
 source $(dirname $0)/env.sh
diff --git a/tools/generate-symbols.sh b/tools/generate-symbols.sh
index 9572466d..36bd4369 100755
--- a/tools/generate-symbols.sh
+++ b/tools/generate-symbols.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -e
 
diff --git a/tools/install-headers.sh b/tools/install-headers.sh
index 26b7d736..cbacbd09 100755
--- a/tools/install-headers.sh
+++ b/tools/install-headers.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -e
 source $(dirname $0)/env.sh
diff --git a/tools/install.sh b/tools/install.sh
index 104badcb..7b903dc2 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 
 source $(dirname $0)/env.sh
diff --git a/tools/rebuild-and-run.sh b/tools/rebuild-and-run.sh
index 84c862af..678c3f60 100755
--- a/tools/rebuild-and-run.sh
+++ b/tools/rebuild-and-run.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -e
 source $(dirname $0)/env.sh
diff --git a/tools/rebuild-iso.sh b/tools/rebuild-iso.sh
index d2c30400..fb38d5b3 100755
--- a/tools/rebuild-iso.sh
+++ b/tools/rebuild-iso.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 
 source $(dirname $0)/env.sh
diff --git a/tools/rebuild.sh b/tools/rebuild.sh
index a1f45456..ee3649b0 100755
--- a/tools/rebuild.sh
+++ b/tools/rebuild.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 
 source $(dirname $0)/env.sh
diff --git a/tools/run.sh b/tools/run.sh
index 2025e470..e1904c95 100755
--- a/tools/run.sh
+++ b/tools/run.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -e
 source $(dirname $0)/env.sh
diff --git a/tools/setup-binutils.sh b/tools/setup-binutils.sh
index 6955f0fb..bb61105d 100755
--- a/tools/setup-binutils.sh
+++ b/tools/setup-binutils.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 source $(dirname $0)/setup-env.sh
 
diff --git a/tools/setup-env.sh b/tools/setup-env.sh
index d1f56088..1d3aa3d0 100755
--- a/tools/setup-env.sh
+++ b/tools/setup-env.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 source $(dirname $0)/env.sh
 
 export LUNA_GCC_VERSION_REQUIRED=12.2.0
diff --git a/tools/setup-gcc.sh b/tools/setup-gcc.sh
index e5e5b783..41b535f1 100755
--- a/tools/setup-gcc.sh
+++ b/tools/setup-gcc.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 source $(dirname $0)/setup-env.sh
 
diff --git a/tools/setup-mkbootimg.sh b/tools/setup-mkbootimg.sh
index 6e72e758..8d3cdf44 100755
--- a/tools/setup-mkbootimg.sh
+++ b/tools/setup-mkbootimg.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -e
 source $(dirname $0)/env.sh
diff --git a/tools/setup.sh b/tools/setup.sh
index 13460a7a..c14ba50c 100755
--- a/tools/setup.sh
+++ b/tools/setup.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 
 if ! $(dirname $0)/test-binutils.sh
diff --git a/tools/sync-libc.sh b/tools/sync-libc.sh
index 858180a1..808bcb04 100755
--- a/tools/sync-libc.sh
+++ b/tools/sync-libc.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -e
 source $(dirname $0)/env.sh
diff --git a/tools/test-binutils.sh b/tools/test-binutils.sh
index 84041a80..4ba6fb3d 100755
--- a/tools/test-binutils.sh
+++ b/tools/test-binutils.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 source $(dirname $0)/setup-env.sh
 
diff --git a/tools/test-gcc.sh b/tools/test-gcc.sh
index e9ed7ac7..c5be191f 100755
--- a/tools/test-gcc.sh
+++ b/tools/test-gcc.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 set -e
 source $(dirname $0)/setup-env.sh