diff --git a/entrypoint.sh b/entrypoint.sh
index 7313658..981f25d 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 set -e
 
 echo "$CRON_SCHEDULE /usr/local/bin/php /opt/phpipam-agent/index.php update > /proc/self/fd/1 2>/proc/self/fd/2" > $CRONTAB_FILE