diff --git a/composer.json b/composer.json
index d609b46..00f4196 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
     "name": "mdjnelson/moodle-mod_customcert",
     "type": "moodle-mod",
     "require": {
-        "composer/installers": "~1.0",
+        "composer/installers": "~2.0",
         "mikehaertl/phpwkhtmltopdf": "^2.5"
     },
     "extra": {
diff --git a/composer.lock b/composer.lock
index 5d6fad3..b46416a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,43 +4,41 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "749e39445f7c33f767b710400da4e9c6",
+    "content-hash": "f8ff42b517cf9fcf9e3a9eb6d0c411a0",
     "packages": [
         {
             "name": "composer/installers",
-            "version": "v1.12.0",
+            "version": "v2.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/installers.git",
-                "reference": "d20a64ed3c94748397ff5973488761b22f6d3f19"
+                "reference": "12fb2dfe5e16183de69e784a7b84046c43d97e8e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/installers/zipball/d20a64ed3c94748397ff5973488761b22f6d3f19",
-                "reference": "d20a64ed3c94748397ff5973488761b22f6d3f19",
+                "url": "https://api.github.com/repos/composer/installers/zipball/12fb2dfe5e16183de69e784a7b84046c43d97e8e",
+                "reference": "12fb2dfe5e16183de69e784a7b84046c43d97e8e",
                 "shasum": ""
             },
             "require": {
-                "composer-plugin-api": "^1.0 || ^2.0"
-            },
-            "replace": {
-                "roundcube/plugin-installer": "*",
-                "shama/baton": "*"
+                "composer-plugin-api": "^1.0 || ^2.0",
+                "php": "^7.2 || ^8.0"
             },
             "require-dev": {
-                "composer/composer": "1.6.* || ^2.0",
-                "composer/semver": "^1 || ^3",
-                "phpstan/phpstan": "^0.12.55",
-                "phpstan/phpstan-phpunit": "^0.12.16",
-                "symfony/phpunit-bridge": "^4.2 || ^5",
-                "symfony/process": "^2.3"
+                "composer/composer": "^1.10.27 || ^2.7",
+                "composer/semver": "^1.7.2 || ^3.4.0",
+                "phpstan/phpstan": "^1.11",
+                "phpstan/phpstan-phpunit": "^1",
+                "symfony/phpunit-bridge": "^7.1.1",
+                "symfony/process": "^5 || ^6 || ^7"
             },
             "type": "composer-plugin",
             "extra": {
                 "class": "Composer\\Installers\\Plugin",
                 "branch-alias": {
-                    "dev-main": "1.x-dev"
-                }
+                    "dev-main": "2.x-dev"
+                },
+                "plugin-modifies-install-path": true
             },
             "autoload": {
                 "psr-4": {
@@ -61,7 +59,6 @@
             "description": "A multi-framework Composer library installer",
             "homepage": "https://composer.github.io/installers/",
             "keywords": [
-                "Craft",
                 "Dolibarr",
                 "Eliasis",
                 "Hurad",
@@ -82,7 +79,6 @@
                 "Whmcs",
                 "WolfCMS",
                 "agl",
-                "aimeos",
                 "annotatecms",
                 "attogram",
                 "bitrix",
@@ -91,6 +87,7 @@
                 "cockpit",
                 "codeigniter",
                 "concrete5",
+                "concreteCMS",
                 "croogo",
                 "dokuwiki",
                 "drupal",
@@ -101,7 +98,6 @@
                 "grav",
                 "installer",
                 "itop",
-                "joomla",
                 "known",
                 "kohana",
                 "laravel",
@@ -110,6 +106,7 @@
                 "magento",
                 "majima",
                 "mako",
+                "matomo",
                 "mediawiki",
                 "miaoxing",
                 "modulework",
@@ -129,9 +126,7 @@
                 "silverstripe",
                 "sydes",
                 "sylius",
-                "symfony",
                 "tastyigniter",
-                "typo3",
                 "wordpress",
                 "yawik",
                 "zend",
@@ -139,7 +134,7 @@
             ],
             "support": {
                 "issues": "https://github.com/composer/installers/issues",
-                "source": "https://github.com/composer/installers/tree/v1.12.0"
+                "source": "https://github.com/composer/installers/tree/v2.3.0"
             },
             "funding": [
                 {
@@ -155,7 +150,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-09-13T08:19:44+00:00"
+            "time": "2024-06-24T20:46:46+00:00"
         },
         {
             "name": "mikehaertl/php-shellcommand",
@@ -302,10 +297,10 @@
     "packages-dev": [],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": [],
+    "stability-flags": {},
     "prefer-stable": false,
     "prefer-lowest": false,
-    "platform": [],
-    "platform-dev": [],
-    "plugin-api-version": "2.0.0"
+    "platform": {},
+    "platform-dev": {},
+    "plugin-api-version": "2.6.0"
 }