diff --git a/rename-calibre-library.sh b/rename-calibre-library.sh
index 0a0c9d4..fbc9459 100755
--- a/rename-calibre-library.sh
+++ b/rename-calibre-library.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 
diff --git a/split-into-folders.sh b/split-into-folders.sh
index d6de796..78e92cd 100755
--- a/split-into-folders.sh
+++ b/split-into-folders.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail