diff --git a/.github/workflows/security-checker.yml b/.github/workflows/security-checker.yml
index e1db40a6f..3396ba3bb 100644
--- a/.github/workflows/security-checker.yml
+++ b/.github/workflows/security-checker.yml
@@ -10,5 +10,5 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - uses: symfonycorp/security-checker-action@v1
+      - uses: symfonycorp/security-checker-action@v3
 
diff --git a/composer.json b/composer.json
index b33b320a2..06a22356a 100644
--- a/composer.json
+++ b/composer.json
@@ -58,7 +58,7 @@
         "payum/paypal-pro-checkout-nvp": "^1.5",
         "payum/payum-bundle": "^2.3",
         "payum/stripe": "^1.5",
-        "php-http/guzzle6-adapter": "^2.0",
+        "php-http/guzzle7-adapter": "^1.0",
         "ramsey/uuid": "^3.9",
         "ramsey/uuid-doctrine": "^1.5",
         "sensio/framework-extra-bundle": "^5.5",
@@ -143,7 +143,11 @@
         "platform": {
             "php": "7.3.5"
         },
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "phpstan/extension-installer": true,
+            "symfony/flex": true
+        }
     },
     "extra": {
         "branch-alias": {
diff --git a/composer.lock b/composer.lock
index 41dcc0a37..35f0a2830 100644
--- a/composer.lock
+++ b/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": "7348e4d2dba8039f34790e25e90a9b9a",
+    "content-hash": "c610708710ed54c56747c2583a6a33e4",
     "packages": [
         {
             "name": "api-platform/core",
@@ -2513,37 +2513,49 @@
         },
         {
             "name": "guzzlehttp/guzzle",
-            "version": "6.5.7",
+            "version": "7.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "724562fa861e21a4071c652c8a159934e4f05592"
+                "reference": "b50a2a1251152e43f6a37f0fa053e730a67d25ba"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/724562fa861e21a4071c652c8a159934e4f05592",
-                "reference": "724562fa861e21a4071c652c8a159934e4f05592",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/b50a2a1251152e43f6a37f0fa053e730a67d25ba",
+                "reference": "b50a2a1251152e43f6a37f0fa053e730a67d25ba",
                 "shasum": ""
             },
             "require": {
                 "ext-json": "*",
-                "guzzlehttp/promises": "^1.0",
-                "guzzlehttp/psr7": "^1.6.1",
-                "php": ">=5.5",
-                "symfony/polyfill-intl-idn": "^1.17.0"
+                "guzzlehttp/promises": "^1.5",
+                "guzzlehttp/psr7": "^1.9 || ^2.4",
+                "php": "^7.2.5 || ^8.0",
+                "psr/http-client": "^1.0",
+                "symfony/deprecation-contracts": "^2.2 || ^3.0"
+            },
+            "provide": {
+                "psr/http-client-implementation": "1.0"
             },
             "require-dev": {
+                "bamarni/composer-bin-plugin": "^1.8.1",
                 "ext-curl": "*",
-                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.4 || ^7.0",
-                "psr/log": "^1.1"
+                "php-http/client-integration-tests": "^3.0",
+                "phpunit/phpunit": "^8.5.29 || ^9.5.23",
+                "psr/log": "^1.1 || ^2.0 || ^3.0"
             },
             "suggest": {
+                "ext-curl": "Required for CURL handler support",
+                "ext-intl": "Required for Internationalized Domain Name (IDN) support",
                 "psr/log": "Required for using the Log middleware"
             },
             "type": "library",
             "extra": {
+                "bamarni-bin": {
+                    "bin-links": true,
+                    "forward-command": false
+                },
                 "branch-alias": {
-                    "dev-master": "6.5-dev"
+                    "dev-master": "7.5-dev"
                 }
             },
             "autoload": {
@@ -2596,19 +2608,20 @@
                 }
             ],
             "description": "Guzzle is a PHP HTTP client library",
-            "homepage": "http://guzzlephp.org/",
             "keywords": [
                 "client",
                 "curl",
                 "framework",
                 "http",
                 "http client",
+                "psr-18",
+                "psr-7",
                 "rest",
                 "web service"
             ],
             "support": {
                 "issues": "https://github.com/guzzle/guzzle/issues",
-                "source": "https://github.com/guzzle/guzzle/tree/6.5.7"
+                "source": "https://github.com/guzzle/guzzle/tree/7.5.0"
             },
             "funding": [
                 {
@@ -2624,20 +2637,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-06-09T21:36:50+00:00"
+            "time": "2022-08-28T15:39:27+00:00"
         },
         {
             "name": "guzzlehttp/promises",
-            "version": "1.5.1",
+            "version": "1.5.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/promises.git",
-                "reference": "fe752aedc9fd8fcca3fe7ad05d419d32998a06da"
+                "reference": "b94b2807d85443f9719887892882d0329d1e2598"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/promises/zipball/fe752aedc9fd8fcca3fe7ad05d419d32998a06da",
-                "reference": "fe752aedc9fd8fcca3fe7ad05d419d32998a06da",
+                "url": "https://api.github.com/repos/guzzle/promises/zipball/b94b2807d85443f9719887892882d0329d1e2598",
+                "reference": "b94b2807d85443f9719887892882d0329d1e2598",
                 "shasum": ""
             },
             "require": {
@@ -2692,7 +2705,7 @@
             ],
             "support": {
                 "issues": "https://github.com/guzzle/promises/issues",
-                "source": "https://github.com/guzzle/promises/tree/1.5.1"
+                "source": "https://github.com/guzzle/promises/tree/1.5.2"
             },
             "funding": [
                 {
@@ -2708,47 +2721,51 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-10-22T20:56:57+00:00"
+            "time": "2022-08-28T14:55:35+00:00"
         },
         {
             "name": "guzzlehttp/psr7",
-            "version": "1.8.5",
+            "version": "2.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/psr7.git",
-                "reference": "337e3ad8e5716c15f9657bd214d16cc5e69df268"
+                "reference": "69568e4293f4fa993f3b0e51c9723e1e17c41379"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/psr7/zipball/337e3ad8e5716c15f9657bd214d16cc5e69df268",
-                "reference": "337e3ad8e5716c15f9657bd214d16cc5e69df268",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/69568e4293f4fa993f3b0e51c9723e1e17c41379",
+                "reference": "69568e4293f4fa993f3b0e51c9723e1e17c41379",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.4.0",
-                "psr/http-message": "~1.0",
-                "ralouphie/getallheaders": "^2.0.5 || ^3.0.0"
+                "php": "^7.2.5 || ^8.0",
+                "psr/http-factory": "^1.0",
+                "psr/http-message": "^1.0",
+                "ralouphie/getallheaders": "^3.0"
             },
             "provide": {
+                "psr/http-factory-implementation": "1.0",
                 "psr/http-message-implementation": "1.0"
             },
             "require-dev": {
-                "ext-zlib": "*",
-                "phpunit/phpunit": "~4.8.36 || ^5.7.27 || ^6.5.14 || ^7.5.20 || ^8.5.8 || ^9.3.10"
+                "bamarni/composer-bin-plugin": "^1.8.1",
+                "http-interop/http-factory-tests": "^0.9",
+                "phpunit/phpunit": "^8.5.29 || ^9.5.23"
             },
             "suggest": {
                 "laminas/laminas-httphandlerrunner": "Emit PSR-7 responses"
             },
             "type": "library",
             "extra": {
+                "bamarni-bin": {
+                    "bin-links": true,
+                    "forward-command": false
+                },
                 "branch-alias": {
-                    "dev-master": "1.7-dev"
+                    "dev-master": "2.4-dev"
                 }
             },
             "autoload": {
-                "files": [
-                    "src/functions_include.php"
-                ],
                 "psr-4": {
                     "GuzzleHttp\\Psr7\\": "src/"
                 }
@@ -2787,6 +2804,11 @@
                     "name": "Tobias Schultze",
                     "email": "webmaster@tubo-world.de",
                     "homepage": "https://github.com/Tobion"
+                },
+                {
+                    "name": "Márk Sági-Kazár",
+                    "email": "mark.sagikazar@gmail.com",
+                    "homepage": "https://sagikazarmark.hu"
                 }
             ],
             "description": "PSR-7 message implementation that also provides common utility methods",
@@ -2802,7 +2824,7 @@
             ],
             "support": {
                 "issues": "https://github.com/guzzle/psr7/issues",
-                "source": "https://github.com/guzzle/psr7/tree/1.8.5"
+                "source": "https://github.com/guzzle/psr7/tree/2.4.1"
             },
             "funding": [
                 {
@@ -2818,7 +2840,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-03-20T21:51:18+00:00"
+            "time": "2022-08-28T14:45:39+00:00"
         },
         {
             "name": "jms/metadata",
@@ -5462,22 +5484,22 @@
             "time": "2018-11-06T16:28:25+00:00"
         },
         {
-            "name": "php-http/guzzle6-adapter",
-            "version": "v2.0.1",
+            "name": "php-http/guzzle7-adapter",
+            "version": "1.0.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/php-http/guzzle6-adapter.git",
-                "reference": "6074a4b1f4d5c21061b70bab3b8ad484282fe31f"
+                "url": "https://github.com/php-http/guzzle7-adapter.git",
+                "reference": "fb075a71dbfa4847cf0c2938c4e5a9c478ef8b01"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-http/guzzle6-adapter/zipball/6074a4b1f4d5c21061b70bab3b8ad484282fe31f",
-                "reference": "6074a4b1f4d5c21061b70bab3b8ad484282fe31f",
+                "url": "https://api.github.com/repos/php-http/guzzle7-adapter/zipball/fb075a71dbfa4847cf0c2938c4e5a9c478ef8b01",
+                "reference": "fb075a71dbfa4847cf0c2938c4e5a9c478ef8b01",
                 "shasum": ""
             },
             "require": {
-                "guzzlehttp/guzzle": "^6.0",
-                "php": "^7.1",
+                "guzzlehttp/guzzle": "^7.0",
+                "php": "^7.2 | ^8.0",
                 "php-http/httplug": "^2.0",
                 "psr/http-client": "^1.0"
             },
@@ -5487,19 +5509,18 @@
                 "psr/http-client-implementation": "1.0"
             },
             "require-dev": {
-                "ext-curl": "*",
-                "php-http/client-integration-tests": "^2.0",
-                "phpunit/phpunit": "^7.4"
+                "php-http/client-integration-tests": "^3.0",
+                "phpunit/phpunit": "^8.0|^9.3"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.x-dev"
+                    "dev-master": "0.2.x-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
-                    "Http\\Adapter\\Guzzle6\\": "src/"
+                    "Http\\Adapter\\Guzzle7\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -5508,38 +5529,34 @@
             ],
             "authors": [
                 {
-                    "name": "Márk Sági-Kazár",
-                    "email": "mark.sagikazar@gmail.com"
-                },
-                {
-                    "name": "David de Boer",
-                    "email": "david@ddeboer.nl"
+                    "name": "Tobias Nyholm",
+                    "email": "tobias.nyholm@gmail.com"
                 }
             ],
-            "description": "Guzzle 6 HTTP Adapter",
+            "description": "Guzzle 7 HTTP Adapter",
             "homepage": "http://httplug.io",
             "keywords": [
                 "Guzzle",
                 "http"
             ],
             "support": {
-                "issues": "https://github.com/php-http/guzzle6-adapter/issues",
-                "source": "https://github.com/php-http/guzzle6-adapter/tree/master"
+                "issues": "https://github.com/php-http/guzzle7-adapter/issues",
+                "source": "https://github.com/php-http/guzzle7-adapter/tree/1.0.0"
             },
-            "time": "2018-12-16T14:44:03+00:00"
+            "time": "2021-03-09T07:35:15+00:00"
         },
         {
             "name": "php-http/httplug",
-            "version": "2.2.0",
+            "version": "2.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-http/httplug.git",
-                "reference": "191a0a1b41ed026b717421931f8d3bd2514ffbf9"
+                "reference": "f640739f80dfa1152533976e3c112477f69274eb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-http/httplug/zipball/191a0a1b41ed026b717421931f8d3bd2514ffbf9",
-                "reference": "191a0a1b41ed026b717421931f8d3bd2514ffbf9",
+                "url": "https://api.github.com/repos/php-http/httplug/zipball/f640739f80dfa1152533976e3c112477f69274eb",
+                "reference": "f640739f80dfa1152533976e3c112477f69274eb",
                 "shasum": ""
             },
             "require": {
@@ -5586,9 +5603,9 @@
             ],
             "support": {
                 "issues": "https://github.com/php-http/httplug/issues",
-                "source": "https://github.com/php-http/httplug/tree/master"
+                "source": "https://github.com/php-http/httplug/tree/2.3.0"
             },
-            "time": "2020-07-13T15:43:23+00:00"
+            "time": "2022-02-21T09:52:22+00:00"
         },
         {
             "name": "php-http/message",
@@ -6157,6 +6174,61 @@
             },
             "time": "2020-06-29T06:28:15+00:00"
         },
+        {
+            "name": "psr/http-factory",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/http-factory.git",
+                "reference": "12ac7fcd07e5b077433f5f2bee95b3a771bf61be"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/http-factory/zipball/12ac7fcd07e5b077433f5f2bee95b3a771bf61be",
+                "reference": "12ac7fcd07e5b077433f5f2bee95b3a771bf61be",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.0.0",
+                "psr/http-message": "^1.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Http\\Message\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interfaces for PSR-7 HTTP message factories",
+            "keywords": [
+                "factory",
+                "http",
+                "message",
+                "psr",
+                "psr-17",
+                "psr-7",
+                "request",
+                "response"
+            ],
+            "support": {
+                "source": "https://github.com/php-fig/http-factory/tree/master"
+            },
+            "time": "2019-04-30T12:38:16+00:00"
+        },
         {
             "name": "psr/http-message",
             "version": "1.0.1",
@@ -8327,16 +8399,16 @@
         },
         {
             "name": "symfony/flex",
-            "version": "v1.10.0",
+            "version": "v1.19.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/flex.git",
-                "reference": "e38520236bdc911c2f219634b485bc328746e980"
+                "reference": "ab0453b16029e131c112df1a76e59eb2a47e1f67"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/flex/zipball/e38520236bdc911c2f219634b485bc328746e980",
-                "reference": "e38520236bdc911c2f219634b485bc328746e980",
+                "url": "https://api.github.com/repos/symfony/flex/zipball/ab0453b16029e131c112df1a76e59eb2a47e1f67",
+                "reference": "ab0453b16029e131c112df1a76e59eb2a47e1f67",
                 "shasum": ""
             },
             "require": {
@@ -8345,15 +8417,13 @@
             },
             "require-dev": {
                 "composer/composer": "^1.0.2|^2.0",
-                "symfony/dotenv": "^4.4|^5.0",
-                "symfony/phpunit-bridge": "^4.4|^5.0",
-                "symfony/process": "^3.4|^4.4|^5.0"
+                "symfony/dotenv": "^4.4|^5.0|^6.0",
+                "symfony/filesystem": "^4.4|^5.0|^6.0",
+                "symfony/phpunit-bridge": "^4.4.12|^5.0|^6.0",
+                "symfony/process": "^4.4|^5.0|^6.0"
             },
             "type": "composer-plugin",
             "extra": {
-                "branch-alias": {
-                    "dev-main": "1.9-dev"
-                },
                 "class": "Symfony\\Flex\\Flex"
             },
             "autoload": {
@@ -8374,7 +8444,7 @@
             "description": "Composer plugin for Symfony",
             "support": {
                 "issues": "https://github.com/symfony/flex/issues",
-                "source": "https://github.com/symfony/flex/tree/v1.10.0"
+                "source": "https://github.com/symfony/flex/tree/v1.19.3"
             },
             "funding": [
                 {
@@ -8390,7 +8460,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2020-11-05T10:56:45+00:00"
+            "time": "2022-08-07T09:39:08+00:00"
         },
         {
             "name": "symfony/form",
diff --git a/src/NotificationBundle/Notification/NotificationManager.php b/src/NotificationBundle/Notification/NotificationManager.php
index ead46e8e3..650e9ad97 100644
--- a/src/NotificationBundle/Notification/NotificationManager.php
+++ b/src/NotificationBundle/Notification/NotificationManager.php
@@ -67,7 +67,7 @@ public function sendNotification(string $event, NotificationMessageInterface $me
 
         $notification = new ChainedNotification();
 
-        //@TODO: Settings should automatically be decoded
+        // @TODO: Settings should automatically be decoded
         $settings = json_decode($this->settings->get(sprintf('notification/%s', $event)), true, 512, JSON_THROW_ON_ERROR);
 
         if ((bool) $settings['email']) {
diff --git a/src/PaymentBundle/Form/Methods/PaypalExpressCheckout.php b/src/PaymentBundle/Form/Methods/PaypalExpressCheckout.php
index f0fade49c..a4d0d2afa 100644
--- a/src/PaymentBundle/Form/Methods/PaypalExpressCheckout.php
+++ b/src/PaymentBundle/Form/Methods/PaypalExpressCheckout.php
@@ -39,7 +39,7 @@ public function buildForm(FormBuilderInterface $builder, array $options)
             'password',
             PasswordType::class,
             [
-                //'help' => 'payment.settings.password.hint',
+                // 'help' => 'payment.settings.password.hint',
                 'constraints' => new NotBlank(), // @TODO: This constraint should only be added when saving for the first time
             ]
         );
diff --git a/src/PaymentBundle/Form/Methods/PaypalProCheckout.php b/src/PaymentBundle/Form/Methods/PaypalProCheckout.php
index 01eeae151..5d0987d47 100644
--- a/src/PaymentBundle/Form/Methods/PaypalProCheckout.php
+++ b/src/PaymentBundle/Form/Methods/PaypalProCheckout.php
@@ -39,7 +39,7 @@ public function buildForm(FormBuilderInterface $builder, array $options)
             'password',
             PasswordType::class,
             [
-                //'help' => 'payment.settings.password.hint',
+                // 'help' => 'payment.settings.password.hint',
                 'constraints' => new NotBlank(), // @TODO: This constraint should only be added when saving for the first time
             ]
         );
diff --git a/symfony.lock b/symfony.lock
index 1dd7798c0..8ac4d044c 100644
--- a/symfony.lock
+++ b/symfony.lock
@@ -185,15 +185,6 @@
     "goetas-webservices/xsd2php-runtime": {
         "version": "v0.2.12"
     },
-    "guzzlehttp/guzzle": {
-        "version": "6.5.5"
-    },
-    "guzzlehttp/promises": {
-        "version": "v1.3.1"
-    },
-    "guzzlehttp/psr7": {
-        "version": "1.6.1"
-    },
     "hamcrest/hamcrest-php": {
         "version": "v2.0.1"
     },
@@ -344,21 +335,12 @@
     "php-coveralls/php-coveralls": {
         "version": "v2.2.0"
     },
-    "php-http/guzzle6-adapter": {
-        "version": "v2.0.1"
-    },
-    "php-http/httplug": {
-        "version": "2.2.0"
-    },
     "php-http/message": {
         "version": "1.8.0"
     },
     "php-http/message-factory": {
         "version": "v1.0.2"
     },
-    "php-http/promise": {
-        "version": "1.1.0"
-    },
     "php-webdriver/webdriver": {
         "version": "1.8.2"
     },
@@ -398,9 +380,6 @@
     "psr/container": {
         "version": "1.0.0"
     },
-    "psr/http-client": {
-        "version": "1.0.1"
-    },
     "psr/http-message": {
         "version": "1.0.1"
     },
@@ -413,9 +392,6 @@
     "psr/simple-cache": {
         "version": "1.0.1"
     },
-    "ralouphie/getallheaders": {
-        "version": "3.0.3"
-    },
     "ramsey/uuid": {
         "version": "3.9.3"
     },