diff --git a/test/quotes.t b/test/quotes.t
index 82795b7d3..898c85dc8 100755
--- a/test/quotes.t
+++ b/test/quotes.t
@@ -130,7 +130,7 @@ class TestBug1436(TestCase):
 
            This problem is entirely testing artifact, and not Taskwarrior.
         """
-        self.echo = Task(taskw=utils.binary_location("/bin/echo"))
+        self.echo = Task(taskw=utils.binary_location("echo", USE_PATH=True))
 
         # One level of backshashes gets eaten by bash
         # Verify with: $ echo xxx \\\\yyy zzz
diff --git a/test/tw-1883.t b/test/tw-1883.t
index 37a0f2b14..5d88350e8 100755
--- a/test/tw-1883.t
+++ b/test/tw-1883.t
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Test for TW-1883 (#1896 on Github)
 # https://github.com/GothenburgBitFactory/taskwarrior/issues/1896
 
diff --git a/test/tw-1895.t b/test/tw-1895.t
index 3999150c5..60157531a 100644
--- a/test/tw-1895.t
+++ b/test/tw-1895.t
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 . bash_tap_tw.sh
 
diff --git a/test/tw-2124.t b/test/tw-2124.t
index 945221d58..2c75a63a1 100755
--- a/test/tw-2124.t
+++ b/test/tw-2124.t
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # A test case for TW-2124.
 # https://github.com/GothenburgBitFactory/taskwarrior/issues/2124
 
diff --git a/test/tw-2257.t b/test/tw-2257.t
index 248223017..944ff7a3d 100755
--- a/test/tw-2257.t
+++ b/test/tw-2257.t
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 . bash_tap_tw.sh
 
diff --git a/test/tw-2386.t b/test/tw-2386.t
index a739e9359..76ebd908f 100755
--- a/test/tw-2386.t
+++ b/test/tw-2386.t
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 . bash_tap_tw.sh