diff --git a/spec/system/framework/Security/Encryption/Encryption.spec.php b/spec/system/framework/Security/Encryption/Encryption.spec.php
index 6dc9ed16..b5c7d3b1 100644
--- a/spec/system/framework/Security/Encryption/Encryption.spec.php
+++ b/spec/system/framework/Security/Encryption/Encryption.spec.php
@@ -131,7 +131,7 @@
             $config['authKeyInfo']    = 'authentication';
             $encrypter                = single_service('encrypter', $config);
 
-            $encrypted = '211c55b9d1948187557bff88c1e77e0f6b965e3711d477d97fb0b60907a7336028714dbb8dfe90598039e9bc7147b54e552d739b378cd864fb91dde9ad6d4ffalIvVxFDDLTPBYGaHLNDzUSJExBKbQJ0NW27KDaR83bYqz8MDz/mXXpE+HHdaWjEE';
+            $encrypted = 'ZGY3OWMyODBjN2M4MjBlNWEyMjRkY2RlOTQzNDIwNjA1ZGI2MzU2NDVjMDFmNjdhODM4ZDE1YmYyYzczZTYyNmQ1MmNhZmUyMjU1MTMxYWI2ZjRlNTFjYWUyYjY1OWJkNjNhMjhjZTU2ZTkyZWNlNTE1NTE5NDlhYThmMDlhZjVMNWN0SXVrU0hkQjJOVVczT1paK0RkbTM4WFRWTnNUVTJFTlZQWmxHNGJSS1hPaUpCMHNhMXBxcUlsc3RTaXpr';
             $decrypted = $encrypter->decrypt($encrypted);
 
             $expected = 'This is a plain-text message.';
@@ -148,7 +148,7 @@
             $config['authKeyInfo']    = 'authentication';
             $encrypter                = single_service('encrypter', $config);
 
-            $encrypted = 'f5eeb3f056b2dc5e8119b4a5f5ba793d724b9ca2d1ca23ab89bc72e51863f8da233a83ccb48d5daf3d6905d61f357877aaad32c8bc7a7c5e48f3268d2ba362b9UTw2A7U4CB9vb+6izrDzJHAdz1hAutIt2Ex2C2FqamJAXc8Z8RQor9UvaWy2';
+            $encrypted = 'ZDY2MjM0NGYzNTdmNDE4NjZlOWQ4MzhkYjBmMTdkYjQ5ZGRhZDU3OTQ3YWM2YTFmZGU2YWM3YjhjMDQ5NWM4ZDU1MTUwMDljZjI5YjBmOGM2MTkxNGNiMWI1ZjE5ZjU1ZmRmOTdlMDY2Y2VkMzU5OTQ0ODdlZjgwMDUyMzU2ZGFMVmdpakhLUmY1ZFdsM09Mb0I0RGlIcGwxNUtkcTQxaU94eHVlYTNNK2dlaTlXdU5zYXladXdmcndqOUY=';
             $decrypted = $encrypter->decrypt($encrypted);
 
             $expected = 'This is a plain-text message.';
diff --git a/src/Security/Encryption/Encryption.php b/src/Security/Encryption/Encryption.php
index 369653e4..af754488 100644
--- a/src/Security/Encryption/Encryption.php
+++ b/src/Security/Encryption/Encryption.php
@@ -100,7 +100,11 @@ public function encrypt(string $data, array|string|null $params = null): string
      */
     public function decrypt(string $data, array|string|null $params = null): string
     {
-        return $this->encrypter()->decrypt(base64_decode($data, true), $params);
+        if (function_exists('mb_check_encoding')) {
+            $data = ! mb_check_encoding($data, 'UTF-8') ? $data : base64_decode($data, true);
+        }
+
+        return $this->encrypter()->decrypt($data, $params);
     }
 
     /**