diff --git a/setup/redhat/install.sh b/setup/redhat/install.sh
index a74c7cd975b..e214d04acff 100644
--- a/setup/redhat/install.sh
+++ b/setup/redhat/install.sh
@@ -1,3 +1,3 @@
-#!/usr/bin/env bash
+#!/bin/sh
 set -e
 python setup.py install --prefix=/usr --root=$RPM_BUILD_ROOT --record=INSTALLED_FILES
diff --git a/setup/redhat/postinstall.sh b/setup/redhat/postinstall.sh
index ccc8fd63ebe..c7e5e9d8eb2 100644
--- a/setup/redhat/postinstall.sh
+++ b/setup/redhat/postinstall.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 set -e