diff --git a/lib/api/deploy b/lib/api/deploy
index 325c5da..edc3aee 100755
--- a/lib/api/deploy
+++ b/lib/api/deploy
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-php $(realpath $(dirname $0))/source/deploy.php;
+/usr/bin/env php $(realpath $(dirname $0))/source/deploy.php;
diff --git a/lib/api/fetch b/lib/api/fetch
index d0b1d8d..c2c5e4e 100755
--- a/lib/api/fetch
+++ b/lib/api/fetch
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-php $(realpath $(dirname $0))/source/fetch.php;
+/usr/bin/env php $(realpath $(dirname $0))/source/fetch.php;
diff --git a/lib/api/sync b/lib/api/sync
index 080f13e..bceff8a 100755
--- a/lib/api/sync
+++ b/lib/api/sync
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-php $(realpath $(dirname $0))/source/sync.php;
+/usr/bin/env php $(realpath $(dirname $0))/source/sync.php;
diff --git a/lib/cyclic-hash/decr b/lib/cyclic-hash/decr
index 2a78700..41f572b 100755
--- a/lib/cyclic-hash/decr
+++ b/lib/cyclic-hash/decr
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-php $(realpath $(dirname $0))/source/decr.php;
+/usr/bin/env php $(realpath $(dirname $0))/source/decr.php;
diff --git a/lib/cyclic-hash/hash b/lib/cyclic-hash/hash
index ffe1d47..936e7ef 100755
--- a/lib/cyclic-hash/hash
+++ b/lib/cyclic-hash/hash
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-php $(realpath $(dirname $0))/source/hash.php;
+/usr/bin/env php $(realpath $(dirname $0))/source/hash.php;
diff --git a/lib/cyclic-hash/new b/lib/cyclic-hash/new
index 4e2befe..f079dc7 100755
--- a/lib/cyclic-hash/new
+++ b/lib/cyclic-hash/new
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-php $(realpath $(dirname $0))/source/new.php;
+/usr/bin/env php $(realpath $(dirname $0))/source/new.php;
diff --git a/lib/mfrc522/loop b/lib/mfrc522/loop
index 81c9584..4b0a07a 100755
--- a/lib/mfrc522/loop
+++ b/lib/mfrc522/loop
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-php $(realpath $(dirname $0))/source/loop.php;
+/usr/bin/env php $(realpath $(dirname $0))/source/loop.php;
diff --git a/lib/mfrc522/read b/lib/mfrc522/read
index 179a067..ad86c88 100755
--- a/lib/mfrc522/read
+++ b/lib/mfrc522/read
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-python $(realpath $(dirname $0))/source/read.py;
+/usr/bin/env python $(realpath $(dirname $0))/source/read.py;