diff --git a/release/docker/docker-entrypoint.sh b/release/docker/docker-entrypoint.sh
index 7bb3028a3..84ea81e6a 100755
--- a/release/docker/docker-entrypoint.sh
+++ b/release/docker/docker-entrypoint.sh
@@ -1,4 +1,5 @@
-#!/usr/bin/env bash
+#!/bin/sh
+# WARNING: do not change the shebang - the Docker base image might not have what you want!
 
 set -o errexit
 set -o pipefail