diff --git a/web3.js/bin/localnet.sh b/web3.js/bin/localnet.sh
index d6307e2ee7..0327f721f1 100755
--- a/web3.js/bin/localnet.sh
+++ b/web3.js/bin/localnet.sh
@@ -1,4 +1,5 @@
-#!/bin/bash -e
+#!/usr/bin/env bash
+set -e
 
 usage() {
   exitcode=0
diff --git a/web3.js/test/fixtures/noop/build.sh b/web3.js/test/fixtures/noop/build.sh
index 9ed8c83f50..136b27f7fc 100755
--- a/web3.js/test/fixtures/noop/build.sh
+++ b/web3.js/test/fixtures/noop/build.sh
@@ -1,4 +1,5 @@
-#!/bin/bash -ex
+#!/usr/bin/env bash
+set -ex
 
 make -C ../../../examples/bpf-c-noop/
 cp ../../../examples/bpf-c-noop/out/noop.o .