diff --git a/src/Backend/OpenSSL.php b/src/Backend/OpenSSL.php
index b961d93f..1221e889 100644
--- a/src/Backend/OpenSSL.php
+++ b/src/Backend/OpenSSL.php
@@ -164,7 +164,7 @@ public function decrypt(KeyInterface $key, string $ciphertext): string
             $key->getMaterial(),
             $options,
             $iv,
-            strval($authTag), /** @TODO remove strval when minimal php-version becomes >=8.1 */
+            $authTag,
         );
 
         if ($plaintext === false) {