diff --git a/src/Symfony/Component/Config/Exception/FileLoaderLoadException.php b/src/Symfony/Component/Config/Exception/FileLoaderLoadException.php
index 45e73e3ce84b7..16beec5930c82 100644
--- a/src/Symfony/Component/Config/Exception/FileLoaderLoadException.php
+++ b/src/Symfony/Component/Config/Exception/FileLoaderLoadException.php
@@ -24,10 +24,10 @@ class FileLoaderLoadException extends \Exception
      * @param string     $resource       The resource that could not be imported
      * @param string     $sourceResource The original resource importing the new resource
      * @param int        $code           The error code
-     * @param \Exception $previous       A previous exception
+     * @param \Throwable $previous       A previous exception
      * @param string     $type           The type of resource
      */
-    public function __construct(string $resource, string $sourceResource = null, int $code = null, \Exception $previous = null, string $type = null)
+    public function __construct(string $resource, string $sourceResource = null, int $code = null, \Throwable $previous = null, string $type = null)
     {
         $message = '';
         if ($previous) {
diff --git a/src/Symfony/Component/Console/Exception/CommandNotFoundException.php b/src/Symfony/Component/Console/Exception/CommandNotFoundException.php
index 15ac522c67880..69d5cb996a084 100644
--- a/src/Symfony/Component/Console/Exception/CommandNotFoundException.php
+++ b/src/Symfony/Component/Console/Exception/CommandNotFoundException.php
@@ -24,9 +24,9 @@ class CommandNotFoundException extends \InvalidArgumentException implements Exce
      * @param string     $message      Exception message to throw
      * @param array      $alternatives List of similar defined names
      * @param int        $code         Exception code
-     * @param \Exception $previous     Previous exception used for the exception chaining
+     * @param \Throwable $previous     Previous exception used for the exception chaining
      */
-    public function __construct(string $message, array $alternatives = [], int $code = 0, \Exception $previous = null)
+    public function __construct(string $message, array $alternatives = [], int $code = 0, \Throwable $previous = null)
     {
         parent::__construct($message, $code, $previous);