diff --git a/functions/extract b/functions/extract
index 16640fe..ed607a9 100755
--- a/functions/extract
+++ b/functions/extract
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 #
 # Usage: extract <file>
 # Description: extracts archived files / mounts disk images
diff --git a/macos/install_brew.sh b/macos/install_brew.sh
index 2e89969..7b864e1 100755
--- a/macos/install_brew.sh
+++ b/macos/install_brew.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 # Check for Homebrew and install if missing
 if test ! $(which brew); then