diff --git a/test/emacs-large-search-buffer b/test/emacs-large-search-buffer
index a3b5c79c..56caf1f4 100755
--- a/test/emacs-large-search-buffer
+++ b/test/emacs-large-search-buffer
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 test_description="Emacs with large search results buffer"
 . test-lib.sh
 
diff --git a/test/multipart b/test/multipart
index 80da0b45..7757b377 100755
--- a/test/multipart
+++ b/test/multipart
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 test_description="output of multipart message"
 . ./test-lib.sh
 
diff --git a/test/search-by-folder b/test/search-by-folder
index 162158c3..4afa483d 100755
--- a/test/search-by-folder
+++ b/test/search-by-folder
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 test_description='"notmuch search" by folder: (with variations)'
 . ./test-lib.sh
 
diff --git a/test/search-insufficient-from-quoting b/test/search-insufficient-from-quoting
index 17c35a22..e83ea3d1 100755
--- a/test/search-insufficient-from-quoting
+++ b/test/search-insufficient-from-quoting
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 test_description='messages with unquoted . in name'
 . ./test-lib.sh
 
diff --git a/test/search-position-overlap-bug b/test/search-position-overlap-bug
index 5bbef740..414b8d52 100755
--- a/test/search-position-overlap-bug
+++ b/test/search-position-overlap-bug
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Test to demonstrate a position overlap bug.
 #