diff --git a/.github/run_test.sh b/.github/run_test.sh
index 1d1ecbf35..7ef17697f 100755
--- a/.github/run_test.sh
+++ b/.github/run_test.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/sh
 
 . .github/configs $1
 
diff --git a/.github/setup_ci.sh b/.github/setup_ci.sh
index 6240ef06e..61fd9725d 100755
--- a/.github/setup_ci.sh
+++ b/.github/setup_ci.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/sh
 
 case $(./config.guess) in
 *-darwin*)