diff --git a/build/api/core/Checker.php b/build/api/core/Checker.php
index 0e88b0f..19880d0 100755
--- a/build/api/core/Checker.php
+++ b/build/api/core/Checker.php
@@ -102,7 +102,7 @@
 
 				// Hash sha1/md5
 				case 'hash':
-					return $checker && is_string($value) && preg_match('/^[\da-f]+$/i', $value) && (strlen($value) == 40 || strlen($value) == 64);
+					return $checker && is_string($value) && preg_match('/^[\da-f]{128}$/', $value);
 					break;
 
 				case 'alphanumeric':