diff --git a/scripts/bump_major_version.php b/scripts/bump_major_version.php
index 798f9bd..306d204 100755
--- a/scripts/bump_major_version.php
+++ b/scripts/bump_major_version.php
@@ -1,4 +1,4 @@
-#!/usr/bin/php
+#!/usr/bin/env php
 <?php
 require __DIR__ . '/../src/Curl/Curl.php';
 
diff --git a/scripts/bump_minor_version.php b/scripts/bump_minor_version.php
index f61751e..5ef102e 100755
--- a/scripts/bump_minor_version.php
+++ b/scripts/bump_minor_version.php
@@ -1,4 +1,4 @@
-#!/usr/bin/php
+#!/usr/bin/env php
 <?php
 require __DIR__ . '/../src/Curl/Curl.php';
 
diff --git a/scripts/bump_patch_version.php b/scripts/bump_patch_version.php
index e4dee9b..62bd370 100755
--- a/scripts/bump_patch_version.php
+++ b/scripts/bump_patch_version.php
@@ -1,4 +1,4 @@
-#!/usr/bin/php
+#!/usr/bin/env php
 <?php
 require __DIR__ . '/../src/Curl/Curl.php';