diff --git a/deploy.sh b/deploy.sh
index 8dcb7c5f..e24393c7 100644
--- a/deploy.sh
+++ b/deploy.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/sh
 set -ex # Exit immediately if a command exits with a non-zero status and print commands.
 
 echo "Running composer"