diff --git a/src/CryptKey.php b/src/CryptKey.php
index 3a3bdd9d4..dbf372fe5 100644
--- a/src/CryptKey.php
+++ b/src/CryptKey.php
@@ -75,7 +75,7 @@ public function __construct(string $keyPath, protected ?string $passPhrase = nul
         if ($keyPermissionsCheck === true) {
             // Verify the permissions of the key
             $keyPathPerms = decoct(fileperms($this->keyPath) & 0777);
-            if (in_array($keyPathPerms, ['400', '440', '600', '640', '660'], true) === false) {
+            if (in_array($keyPathPerms, ['600', '660', '770'], true) === false) {
                 trigger_error(
                     sprintf(
                         'Key file "%s" permissions are not correct, recommend changing to 600 or 660 instead of %s',