diff --git a/test/e2e_test.sh b/test/e2e_test.sh
index b480e65e755..d8df804bdc0 100755
--- a/test/e2e_test.sh
+++ b/test/e2e_test.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright 2021 The Sigstore Authors.
 #
diff --git a/test/e2e_test_cosigned.sh b/test/e2e_test_cosigned.sh
index 45bcd8f6554..7a0b5b5799f 100755
--- a/test/e2e_test_cosigned.sh
+++ b/test/e2e_test_cosigned.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright 2021 The Sigstore Authors.
 #
diff --git a/test/e2e_test_insecure_registry.sh b/test/e2e_test_insecure_registry.sh
index 1b2b15903c8..42ee89c982d 100755
--- a/test/e2e_test_insecure_registry.sh
+++ b/test/e2e_test_insecure_registry.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright 2021 The Sigstore Authors.
 #
diff --git a/test/e2e_test_secrets.sh b/test/e2e_test_secrets.sh
index fa0ca436027..951d79ba7d1 100755
--- a/test/e2e_test_secrets.sh
+++ b/test/e2e_test_secrets.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright 2021 The Sigstore Authors.
 #