diff --git a/composer.json b/composer.json
index bccda55..8b32091 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         "issues": "https://github.com/DirectoryLister/DirectoryLister/issues"
     },
     "require": {
-        "php": ">=7.2",
+        "php": "^7.2|^8.0",
         "ext-dom": "*",
         "ext-fileinfo": "*",
         "ext-zip": "*",
@@ -21,6 +21,7 @@
         "filp/whoops": "^2.7",
         "middlewares/cache": "^2.0",
         "phlak/splat": "^3.0",
+        "php-di/invoker": "2.0.0",
         "php-di/php-di": "^6.0",
         "php-di/slim-bridge": "^3.0",
         "psr/http-message": "^1.0.1",
diff --git a/composer.lock b/composer.lock
index 23c07d7..4fffb22 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": "3e2471da9047c1459430acf13385c2ef",
+    "content-hash": "1cc10e4c8f804e8cf0fa0b31afdf6651",
     "packages": [
         {
             "name": "erusev/parsedown",
@@ -644,26 +644,24 @@
         },
         {
             "name": "php-di/invoker",
-            "version": "2.3.0",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHP-DI/Invoker.git",
-                "reference": "992fec6c56f2d1ad1ad5fee28267867c85bfb8f9"
+                "reference": "540c27c86f663e20fe39a24cd72fa76cdb21d41a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHP-DI/Invoker/zipball/992fec6c56f2d1ad1ad5fee28267867c85bfb8f9",
-                "reference": "992fec6c56f2d1ad1ad5fee28267867c85bfb8f9",
+                "url": "https://api.github.com/repos/PHP-DI/Invoker/zipball/540c27c86f663e20fe39a24cd72fa76cdb21d41a",
+                "reference": "540c27c86f663e20fe39a24cd72fa76cdb21d41a",
                 "shasum": ""
             },
             "require": {
-                "php": ">=7.3",
                 "psr/container": "~1.0"
             },
             "require-dev": {
                 "athletic/athletic": "~0.1.8",
-                "mnapoli/hard-mode": "~0.3.0",
-                "phpunit/phpunit": "^9.0"
+                "phpunit/phpunit": "~4.5"
             },
             "type": "library",
             "autoload": {
@@ -687,15 +685,9 @@
             ],
             "support": {
                 "issues": "https://github.com/PHP-DI/Invoker/issues",
-                "source": "https://github.com/PHP-DI/Invoker/tree/2.3.0"
+                "source": "https://github.com/PHP-DI/Invoker/tree/master"
             },
-            "funding": [
-                {
-                    "url": "https://github.com/mnapoli",
-                    "type": "github"
-                }
-            ],
-            "time": "2021-01-15T10:25:40+00:00"
+            "time": "2017-03-20T19:28:22+00:00"
         },
         {
             "name": "php-di/php-di",
@@ -7229,7 +7221,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=7.2",
+        "php": "^7.2|^8.0",
         "ext-dom": "*",
         "ext-fileinfo": "*",
         "ext-zip": "*"