diff --git a/maintenance/gen_deps.sh b/maintenance/gen_deps.sh
index 2bce0cf493b..6191afa90b7 100755
--- a/maintenance/gen_deps.sh
+++ b/maintenance/gen_deps.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 set -e -o pipefail
 maintenance_dir="$(realpath $(dirname $0))"
 [ "$(which dune-deps)" != '' ] || (echo 'missing required executable "dune-deps"; try `opam install dune-deps`' && exit 1)