diff --git a/Chapter07/composer.lock b/Chapter07/composer.lock
index 7ecf48ce..82fc40d4 100644
--- a/Chapter07/composer.lock
+++ b/Chapter07/composer.lock
@@ -1,7 +1,7 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
     "content-hash": "5eba86da256ddeb8084c32d3d10e18d3",
@@ -914,23 +914,23 @@
         },
         {
             "name": "paragonie/random_compat",
-            "version": "v2.0.11",
+            "version": "v2.0.21",
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                 "type": "git",
                 "url": "https://github.com/paragonie/random_compat.git",
-                "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8"
+                "reference": "96c132c7f2f7bc3230723b66e89f8f150b29d5ae"
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             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/5da4d3c796c275c55f057af5a643ae297d96b4d8",
-                "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8",
+                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/96c132c7f2f7bc3230723b66e89f8f150b29d5ae",
+                "reference": "96c132c7f2f7bc3230723b66e89f8f150b29d5ae",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.2.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "4.*|5.*"
+                "phpunit/phpunit": "*"
             },
             "suggest": {
                 "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
@@ -955,10 +955,16 @@
             "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
             "keywords": [
                 "csprng",
+                "polyfill",
                 "pseudorandom",
                 "random"
             ],
-            "time": "2017-09-27T21:40:39+00:00"
+            "support": {
+                "email": "info@paragonie.com",
+                "issues": "https://github.com/paragonie/random_compat/issues",
+                "source": "https://github.com/paragonie/random_compat"
+            },
+            "time": "2022-02-16T17:07:03+00:00"
         },
         {
             "name": "psr/container",
@@ -1605,16 +1611,16 @@
         },
         {
             "name": "symfony/http-foundation",
-            "version": "v3.4.2",
+            "version": "v3.4.47",
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                 "url": "https://github.com/symfony/http-foundation.git",
-                "reference": "59bf131b5460227a2f583a7dbe6b179f98f9e0a5"
+                "reference": "b9885fcce6fe494201da4f70a9309770e9d13dc8"
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-                "reference": "59bf131b5460227a2f583a7dbe6b179f98f9e0a5",
+                "url": "https://api.github.com/repos/symfony/http-foundation/zipball/b9885fcce6fe494201da4f70a9309770e9d13dc8",
+                "reference": "b9885fcce6fe494201da4f70a9309770e9d13dc8",
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             "require": {
@@ -1626,11 +1632,6 @@
                 "symfony/expression-language": "~2.8|~3.0|~4.0"
             },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "3.4-dev"
-                }
-            },
             "autoload": {
                 "psr-4": {
                     "Symfony\\Component\\HttpFoundation\\": ""
@@ -1655,7 +1656,24 @@
             ],
             "description": "Symfony HttpFoundation Component",
             "homepage": "https://symfony.com",
-            "time": "2017-12-14T19:40:10+00:00"
+            "support": {
+                "source": "https://github.com/symfony/http-foundation/tree/v3.4.47"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-10-24T10:57:07+00:00"
         },
         {
             "name": "symfony/http-kernel",
@@ -1747,20 +1765,23 @@
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.6.0",
+            "version": "v1.27.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "2ec8b39c38cb16674bbf3fea2b6ce5bf117e1296"
+                "reference": "8ad114f6b39e2c98a8b0e3bd907732c207c2b534"
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             "dist": {
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-                "reference": "2ec8b39c38cb16674bbf3fea2b6ce5bf117e1296",
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+                "reference": "8ad114f6b39e2c98a8b0e3bd907732c207c2b534",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": ">=7.1"
+            },
+            "provide": {
+                "ext-mbstring": "*"
             },
             "suggest": {
                 "ext-mbstring": "For best performance"
@@ -1768,16 +1789,20 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.6-dev"
+                    "dev-main": "1.27-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
                 }
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             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Mbstring\\": ""
-                },
                 "files": [
                     "bootstrap.php"
-                ]
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Mbstring\\": ""
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -1802,42 +1827,51 @@
                 "portable",
                 "shim"
             ],
-            "time": "2017-10-11T12:05:26+00:00"
+            "support": {
+                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.27.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2022-11-03T14:55:06+00:00"
         },
         {
             "name": "symfony/polyfill-php70",
-            "version": "v1.6.0",
+            "version": "v1.20.0",
             "source": {
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                 "url": "https://github.com/symfony/polyfill-php70.git",
-                "reference": "0442b9c0596610bd24ae7b5f0a6cdbbc16d9fcff"
+                "reference": "5f03a781d984aae42cebd18e7912fa80f02ee644"
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             "require": {
-                "paragonie/random_compat": "~1.0|~2.0",
-                "php": ">=5.3.3"
+                "php": ">=7.1"
             },
-            "type": "library",
+            "type": "metapackage",
             "extra": {
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-                    "dev-master": "1.6-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Php70\\": ""
+                    "dev-main": "1.20-dev"
                 },
-                "files": [
-                    "bootstrap.php"
-                ],
-                "classmap": [
-                    "Resources/stubs"
-                ]
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
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             "license": [
@@ -1861,7 +1895,24 @@
                 "portable",
                 "shim"
             ],
-            "time": "2017-10-11T12:05:26+00:00"
+            "support": {
+                "source": "https://github.com/symfony/polyfill-php70/tree/v1.20.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-10-23T14:02:19+00:00"
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         {
             "name": "symfony/process",
@@ -3916,5 +3967,6 @@
     "platform": {
         "php": ">=7.0.0"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.3.0"
 }