diff --git a/debian/postinst b/debian/postinst
index 1df1c3c9..59ea1728 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 # Abort if any command returns an error value 
 set -e