diff --git a/backend/silex/composer.lock b/backend/silex/composer.lock
index e886c188..1d7d2686 100644
--- a/backend/silex/composer.lock
+++ b/backend/silex/composer.lock
@@ -58,12 +58,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Aws\\": "src/"
-                },
                 "files": [
                     "src/functions.php"
-                ]
+                ],
+                "psr-4": {
+                    "Aws\\": "src/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -181,12 +181,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "GuzzleHttp\\Promise\\": "src/"
-                },
                 "files": [
                     "src/functions_include.php"
-                ]
+                ],
+                "psr-4": {
+                    "GuzzleHttp\\Promise\\": "src/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -207,16 +207,16 @@
         },
         {
             "name": "guzzlehttp/psr7",
-            "version": "1.6.1",
+            "version": "1.9.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/psr7.git",
-                "reference": "239400de7a173fe9901b9ac7c06497751f00727a"
+                "reference": "e4490cabc77465aaee90b20cfc9a770f8c04be6b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/psr7/zipball/239400de7a173fe9901b9ac7c06497751f00727a",
-                "reference": "239400de7a173fe9901b9ac7c06497751f00727a",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/e4490cabc77465aaee90b20cfc9a770f8c04be6b",
+                "reference": "e4490cabc77465aaee90b20cfc9a770f8c04be6b",
                 "shasum": ""
             },
             "require": {
@@ -229,37 +229,53 @@
             },
             "require-dev": {
                 "ext-zlib": "*",
-                "phpunit/phpunit": "~4.8.36 || ^5.7.27 || ^6.5.8"
+                "phpunit/phpunit": "~4.8.36 || ^5.7.27 || ^6.5.14 || ^7.5.20 || ^8.5.8 || ^9.3.10"
             },
             "suggest": {
-                "zendframework/zend-httphandlerrunner": "Emit PSR-7 responses"
+                "laminas/laminas-httphandlerrunner": "Emit PSR-7 responses"
             },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.6-dev"
-                }
-            },
             "autoload": {
-                "psr-4": {
-                    "GuzzleHttp\\Psr7\\": "src/"
-                },
                 "files": [
                     "src/functions_include.php"
-                ]
+                ],
+                "psr-4": {
+                    "GuzzleHttp\\Psr7\\": "src/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
             ],
             "authors": [
+                {
+                    "name": "Graham Campbell",
+                    "email": "hello@gjcampbell.co.uk",
+                    "homepage": "https://github.com/GrahamCampbell"
+                },
                 {
                     "name": "Michael Dowling",
                     "email": "mtdowling@gmail.com",
                     "homepage": "https://github.com/mtdowling"
                 },
+                {
+                    "name": "George Mponos",
+                    "email": "gmponos@gmail.com",
+                    "homepage": "https://github.com/gmponos"
+                },
+                {
+                    "name": "Tobias Nyholm",
+                    "email": "tobias.nyholm@gmail.com",
+                    "homepage": "https://github.com/Nyholm"
+                },
+                {
+                    "name": "Márk Sági-Kazár",
+                    "email": "mark.sagikazar@gmail.com",
+                    "homepage": "https://github.com/sagikazarmark"
+                },
                 {
                     "name": "Tobias Schultze",
+                    "email": "webmaster@tubo-world.de",
                     "homepage": "https://github.com/Tobion"
                 }
             ],
@@ -274,7 +290,21 @@
                 "uri",
                 "url"
             ],
-            "time": "2019-07-01T23:21:34+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/GrahamCampbell",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/Nyholm",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/guzzlehttp/psr7",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2023-04-17T16:00:37+00:00"
         },
         {
             "name": "mtdowling/jmespath.php",
@@ -306,12 +336,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "JmesPath\\": "src/"
-                },
                 "files": [
                     "src/JmesPath.php"
-                ]
+                ],
+                "psr-4": {
+                    "JmesPath\\": "src/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -647,9 +677,7 @@
             "authors": [
                 {
                     "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com",
-                    "homepage": "http://fabien.potencier.org",
-                    "role": "Lead Developer"
+                    "email": "fabien@symfony.com"
                 }
             ],
             "description": "Pimple is a simple Dependency Injection Container for PHP 5.3",
@@ -662,25 +690,25 @@
         },
         {
             "name": "psr/http-message",
-            "version": "1.0.1",
+            "version": "1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-fig/http-message.git",
-                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363"
+                "reference": "cb6ce4845ce34a8ad9e68117c10ee90a29919eba"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/http-message/zipball/f6561bf28d520154e4b0ec72be95418abe6d9363",
-                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363",
+                "url": "https://api.github.com/repos/php-fig/http-message/zipball/cb6ce4845ce34a8ad9e68117c10ee90a29919eba",
+                "reference": "cb6ce4845ce34a8ad9e68117c10ee90a29919eba",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.0"
+                "php": "^7.2 || ^8.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "1.1.x-dev"
                 }
             },
             "autoload": {
@@ -708,7 +736,7 @@
                 "request",
                 "response"
             ],
-            "time": "2016-08-06T14:39:51+00:00"
+            "time": "2023-04-04T09:50:52+00:00"
         },
         {
             "name": "psr/log",
@@ -917,19 +945,18 @@
                 "MIT"
             ],
             "authors": [
-                {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com",
-                    "homepage": "http://fabien.potencier.org",
-                    "role": "Lead Developer"
-                },
                 {
                     "name": "Symfony Community",
                     "homepage": "http://symfony.com/contributors"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
                 }
             ],
             "description": "Symfony Debug Component",
             "homepage": "http://symfony.com",
+            "abandoned": "symfony/error-handler",
             "time": "2014-02-11T13:52:09+00:00"
         },
         {
@@ -973,15 +1000,13 @@
                 "MIT"
             ],
             "authors": [
-                {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com",
-                    "homepage": "http://fabien.potencier.org",
-                    "role": "Lead Developer"
-                },
                 {
                     "name": "Symfony Community",
                     "homepage": "http://symfony.com/contributors"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
                 }
             ],
             "description": "Symfony EventDispatcher Component",
@@ -1025,15 +1050,13 @@
                 "MIT"
             ],
             "authors": [
-                {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com",
-                    "homepage": "http://fabien.potencier.org",
-                    "role": "Lead Developer"
-                },
                 {
                     "name": "Symfony Community",
                     "homepage": "http://symfony.com/contributors"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
                 }
             ],
             "description": "Symfony HttpFoundation Component",
@@ -1098,15 +1121,13 @@
                 "MIT"
             ],
             "authors": [
-                {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com",
-                    "homepage": "http://fabien.potencier.org",
-                    "role": "Lead Developer"
-                },
                 {
                     "name": "Symfony Community",
                     "homepage": "http://symfony.com/contributors"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
                 }
             ],
             "description": "Symfony HttpKernel Component",
@@ -1160,15 +1181,13 @@
                 "MIT"
             ],
             "authors": [
-                {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com",
-                    "homepage": "http://fabien.potencier.org",
-                    "role": "Lead Developer"
-                },
                 {
                     "name": "Symfony Community",
                     "homepage": "http://symfony.com/contributors"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
                 }
             ],
             "description": "Symfony Routing Component",
@@ -1250,5 +1269,6 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "1.1.0"
 }