diff --git a/contrib/test.sh b/contrib/test.sh
index 390aad23..0eff10fd 100755
--- a/contrib/test.sh
+++ b/contrib/test.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 
 DEPS="recent minimal"
diff --git a/payjoin-cli/contrib/test.sh b/payjoin-cli/contrib/test.sh
index 825a1c03..f6ea7cd5 100755
--- a/payjoin-cli/contrib/test.sh
+++ b/payjoin-cli/contrib/test.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+set -e
 
 cargo test --locked --package payjoin-cli --verbose --no-default-features --features=danger-local-https,v2 --test e2e
-cargo test --locked --package payjoin-cli --verbose --features=danger-local-https
\ No newline at end of file
+cargo test --locked --package payjoin-cli --verbose --features=danger-local-https
diff --git a/payjoin-directory/contrib/test.sh b/payjoin-directory/contrib/test.sh
index 81dbbef2..d1dec41b 100755
--- a/payjoin-directory/contrib/test.sh
+++ b/payjoin-directory/contrib/test.sh
@@ -1,3 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
+set -e
 
-cargo test --locked --package payjoin-directory --verbose --all-features --lib
\ No newline at end of file
+cargo test --locked --package payjoin-directory --verbose --all-features --lib
diff --git a/payjoin/contrib/test.sh b/payjoin/contrib/test.sh
index 683f04b2..5f49c814 100755
--- a/payjoin/contrib/test.sh
+++ b/payjoin/contrib/test.sh
@@ -1,6 +1,6 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 
 cargo test --locked --package payjoin --verbose --all-features --lib
 cargo test --locked --package payjoin --verbose --features=send,receive --test integration
-cargo test --locked --package payjoin --verbose --no-default-features --features=send,receive,danger-local-https,v2 --test integration
\ No newline at end of file
+cargo test --locked --package payjoin --verbose --no-default-features --features=send,receive,danger-local-https,v2 --test integration