diff --git a/hack/update-codegen.sh b/hack/update-codegen.sh
index 3697707b..1423a1af 100755
--- a/hack/update-codegen.sh
+++ b/hack/update-codegen.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2017 The Kubernetes Authors.
 #
diff --git a/hack/verify-codegen.sh b/hack/verify-codegen.sh
index 9cc02a5a..d02a6fa3 100755
--- a/hack/verify-codegen.sh
+++ b/hack/verify-codegen.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2017 The Kubernetes Authors.
 #