diff --git a/scripts/pkgdep.sh b/scripts/pkgdep.sh
index 1d071eccc..87da546b5 100755
--- a/scripts/pkgdep.sh
+++ b/scripts/pkgdep.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#! /usr/bin/env bash
 # Please run this script as root.
 
 set -e