diff --git a/phnslib.php b/phnslib.php
index 94158fa..f42ef7d 100644
--- a/phnslib.php
+++ b/phnslib.php
@@ -12,7 +12,7 @@ function p2h($data, $keytype) {
     ];
     fwrite($f, json_encode($temp, JSON_UNESCAPED_LINE_TERMINATORS));
     fclose($f)
-    return `python converter.py`;
+    return shell_exec("python converter.py");
 }
 function h2p($data, $keytype) {
     $f = fopen("temp.json", "c");
@@ -27,7 +27,7 @@ function h2p($data, $keytype) {
     ];
     fwrite($f, json_encode($temp, JSON_UNESCAPED_LINE_TERMINATORS));
     fclose($f)
-    return `python converter.py`;
+    return shell_exec("python converter.py");
 }
 function seed2hkey($data) {
     $f = fopen("temp.json", "c");
@@ -42,6 +42,6 @@ function seed2hkey($data) {
     ];
     fwrite($f, json_encode($temp, JSON_UNESCAPED_LINE_TERMINATORS));
     fclose($f)
-    return `python converter.py`;
+    return shell_exec("python converter.py");
 }
 ?>
\ No newline at end of file