diff --git a/distribution/packages/src/common/systemd/systemd-entrypoint b/distribution/packages/src/common/systemd/systemd-entrypoint
index d9eacdb7812af..de59b4573f79a 100644
--- a/distribution/packages/src/common/systemd/systemd-entrypoint
+++ b/distribution/packages/src/common/systemd/systemd-entrypoint
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 # This wrapper script allows SystemD to feed a file containing a passphrase into
 # the main OpenSearch startup script