diff --git a/Other/check_curl old b/Other/check_curl old
index 862e96b..e1739ae 100644
--- a/Other/check_curl old	
+++ b/Other/check_curl old	
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # startup checks
 
 if [ -z "$BASH" ]; then
diff --git a/Other/install-check_interface_table_v3t.sh b/Other/install-check_interface_table_v3t.sh
index 36a8e94..69c425a 100755
--- a/Other/install-check_interface_table_v3t.sh
+++ b/Other/install-check_interface_table_v3t.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 apt-get install snmpd sudo perl libconfig-general-perl libdata-dumper-simple-perl libsort-naturally-perl libexception-class-perl libencode-perl make
 
diff --git a/Other/matrix-host-notification.sh b/Other/matrix-host-notification.sh
index bdb1f45..90c1494 100644
--- a/Other/matrix-host-notification.sh
+++ b/Other/matrix-host-notification.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Based on original E-Mail Icinga2 notification
 
 PROG="$(basename $0)"
diff --git a/Other/matrix-service-notification.sh b/Other/matrix-service-notification.sh
index 81d4416..8022c2b 100644
--- a/Other/matrix-service-notification.sh
+++ b/Other/matrix-service-notification.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Based on original E-Mail Icinga2 notification
 
 PROG="$(basename $0)"
diff --git a/check_coturn.sh b/check_coturn.sh
index 5e7333f..0ae9270 100755
--- a/check_coturn.sh
+++ b/check_coturn.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 SERVER_ADDRESS=""
 SECRET=""
diff --git a/check_curl.sh b/check_curl.sh
index b49e8e3..7bc81b0 100755
--- a/check_curl.sh
+++ b/check_curl.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Define the usage message
 usage() {
diff --git a/check_iowait.sh b/check_iowait.sh
index 51b0a50..c4e7164 100755
--- a/check_iowait.sh
+++ b/check_iowait.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Nagios plugin to check iowait on Linux
 
 if ! command -v iostat &>/dev/null; then
@@ -7,7 +7,7 @@ if ! command -v iostat &>/dev/null; then
   exit 1
 fi
 
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Nagios plugin to check iowait on Linux
 
diff --git a/check_iowait_proc.sh b/check_iowait_proc.sh
index 135ae8a..b62e6fc 100755
--- a/check_iowait_proc.sh
+++ b/check_iowait_proc.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 WARNING_THRESHOLD=10
 CRITICAL_THRESHOLD=20
diff --git a/check_iperf3.sh b/check_iperf3.sh
index e96df58..899d176 100755
--- a/check_iperf3.sh
+++ b/check_iperf3.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 function print_help {
   echo "Usage: $0 --server SERVER --warning WARNING --critical CRITICAL --rsa-key RSA_KEY --username USERNAME --password PASSWORD"
diff --git a/check_uptime.sh b/check_uptime.sh
index dfbe45b..62382ee 100755
--- a/check_uptime.sh
+++ b/check_uptime.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Get the uptime start time
 UPTIME_OUTPUT=$(uptime -s)
diff --git a/install.sh b/install.sh
index dede748..58e33f5 100755
--- a/install.sh
+++ b/install.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # apt-get update && apt-get install -y git && cd /opt && git -C /opt/icinga2-checks pull || git clone https://git.dp15.us/dpanzer/icinga2-checks.git /opt/icinga2-checks && bash /opt/icinga2-checks/install.sh