diff --git a/13-symfony/composer.json b/13-symfony/composer.json
index 94fa7d3..2a551ec 100644
--- a/13-symfony/composer.json
+++ b/13-symfony/composer.json
@@ -10,7 +10,7 @@
         "doctrine/doctrine-fixtures-bundle": "^3.3",
         "doctrine/doctrine-migrations-bundle": "^3.0",
         "doctrine/orm": "^2.7",
-        "firebase/php-jwt": "^5.2",
+        "firebase/php-jwt": "^6.0",
         "sensio/framework-extra-bundle": "^5.5",
         "symfony/console": "5.1.*",
         "symfony/dotenv": "5.1.*",
diff --git a/13-symfony/composer.lock b/13-symfony/composer.lock
index bf1b95a..8a305b6 100644
--- a/13-symfony/composer.lock
+++ b/13-symfony/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "36fded19328931f8e18c13078f564d7c",
+    "content-hash": "05eddde12a34864334c7c813c6e389cb",
     "packages": [
         {
             "name": "composer/package-versions-deprecated",
@@ -982,8 +982,8 @@
             },
             "autoload": {
                 "psr-4": {
-                    "Doctrine\\Common\\Inflector\\": "lib/Doctrine/Common/Inflector",
-                    "Doctrine\\Inflector\\": "lib/Doctrine/Inflector"
+                    "Doctrine\\Inflector\\": "lib/Doctrine/Inflector",
+                    "Doctrine\\Common\\Inflector\\": "lib/Doctrine/Common/Inflector"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -1621,16 +1621,16 @@
         },
         {
             "name": "firebase/php-jwt",
-            "version": "v5.2.0",
+            "version": "v6.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/firebase/php-jwt.git",
-                "reference": "feb0e820b8436873675fd3aca04f3728eb2185cb"
+                "reference": "0541cba75ab108ef901985e68055a92646c73534"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/feb0e820b8436873675fd3aca04f3728eb2185cb",
-                "reference": "feb0e820b8436873675fd3aca04f3728eb2185cb",
+                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/0541cba75ab108ef901985e68055a92646c73534",
+                "reference": "0541cba75ab108ef901985e68055a92646c73534",
                 "shasum": ""
             },
             "require": {
@@ -1639,6 +1639,9 @@
             "require-dev": {
                 "phpunit/phpunit": ">=4.8 <=9"
             },
+            "suggest": {
+                "paragonie/sodium_compat": "Support EdDSA (Ed25519) signatures when libsodium is not present"
+            },
             "type": "library",
             "autoload": {
                 "psr-4": {
@@ -1667,7 +1670,7 @@
                 "jwt",
                 "php"
             ],
-            "time": "2020-03-25T18:49:23+00:00"
+            "time": "2022-01-24T15:18:34+00:00"
         },
         {
             "name": "friendsofphp/proxy-manager-lts",
@@ -2230,6 +2233,7 @@
                 "annotations",
                 "controllers"
             ],
+            "abandoned": "Symfony",
             "time": "2020-06-15T20:28:02+00:00"
         },
         {
@@ -3843,12 +3847,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Intl\\Grapheme\\": ""
-                },
                 "files": [
                     "bootstrap.php"
-                ]
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Intl\\Grapheme\\": ""
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -3921,12 +3925,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Intl\\Normalizer\\": ""
-                },
                 "files": [
                     "bootstrap.php"
                 ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Intl\\Normalizer\\": ""
+                },
                 "classmap": [
                     "Resources/stubs"
                 ]
@@ -4002,12 +4006,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Mbstring\\": ""
-                },
                 "files": [
                     "bootstrap.php"
-                ]
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Mbstring\\": ""
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -4076,12 +4080,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Php73\\": ""
-                },
                 "files": [
                     "bootstrap.php"
                 ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php73\\": ""
+                },
                 "classmap": [
                     "Resources/stubs"
                 ]
@@ -4152,12 +4156,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Php80\\": ""
-                },
                 "files": [
                     "bootstrap.php"
                 ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php80\\": ""
+                },
                 "classmap": [
                     "Resources/stubs"
                 ]
@@ -5020,12 +5024,12 @@
             },
             "type": "library",
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Component\\String\\": ""
-                },
                 "files": [
                     "Resources/functions.php"
                 ],
+                "psr-4": {
+                    "Symfony\\Component\\String\\": ""
+                },
                 "exclude-from-classmap": [
                     "/Tests/"
                 ]