diff --git a/composer.lock b/composer.lock
index 50d402a39..060859f62 100644
--- a/composer.lock
+++ b/composer.lock
@@ -809,12 +809,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Amp\\ByteStream\\": "lib"
-                },
                 "files": [
                     "lib/functions.php"
-                ]
+                ],
+                "psr-4": {
+                    "Amp\\ByteStream\\": "lib"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
diff --git a/lib/packages/Psr/Container/ContainerExceptionInterface.php b/lib/packages/Psr/Container/ContainerExceptionInterface.php
index 1215883b7..e36fa7885 100644
--- a/lib/packages/Psr/Container/ContainerExceptionInterface.php
+++ b/lib/packages/Psr/Container/ContainerExceptionInterface.php
@@ -1,12 +1,13 @@
 <?php
+/**
+ * @license http://www.opensource.org/licenses/mit-license.php MIT (see the LICENSE file)
+ */
 
 namespace WooCommerce\PayPalCommerce\Vendor\Psr\Container;
 
-use Throwable;
-
 /**
  * Base interface representing a generic exception in a container.
  */
-interface ContainerExceptionInterface extends Throwable
+interface ContainerExceptionInterface
 {
 }
diff --git a/lib/packages/Psr/Container/ContainerInterface.php b/lib/packages/Psr/Container/ContainerInterface.php
index 53ef81e12..2839e7f39 100644
--- a/lib/packages/Psr/Container/ContainerInterface.php
+++ b/lib/packages/Psr/Container/ContainerInterface.php
@@ -1,6 +1,7 @@
 <?php
-
-declare(strict_types=1);
+/**
+ * @license http://www.opensource.org/licenses/mit-license.php MIT (see the LICENSE file)
+ */
 
 namespace WooCommerce\PayPalCommerce\Vendor\Psr\Container;
 
@@ -19,7 +20,7 @@ interface ContainerInterface
      *
      * @return mixed Entry.
      */
-    public function get(string $id);
+    public function get($id);
 
     /**
      * Returns true if the container can return an entry for the given identifier.
@@ -32,5 +33,5 @@ interface ContainerInterface
      *
      * @return bool
      */
-    public function has(string $id);
+    public function has($id);
 }
diff --git a/lib/packages/Psr/Container/NotFoundExceptionInterface.php b/lib/packages/Psr/Container/NotFoundExceptionInterface.php
index 79a721f1d..f898dce08 100644
--- a/lib/packages/Psr/Container/NotFoundExceptionInterface.php
+++ b/lib/packages/Psr/Container/NotFoundExceptionInterface.php
@@ -1,4 +1,7 @@
 <?php
+/**
+ * @license http://www.opensource.org/licenses/mit-license.php MIT (see the LICENSE file)
+ */
 
 namespace WooCommerce\PayPalCommerce\Vendor\Psr\Container;