diff --git a/Makefile b/Makefile
index 4a04e22..58f4b68 100644
--- a/Makefile
+++ b/Makefile
@@ -66,7 +66,7 @@ composer-require-checker: ## Ensure we require every package used in this packag
 	$(DOCKER_RUN) vendor/bin/composer-require-checker --ignore-parse-errors --ansi -vvv --config-file=./etc/qa/composer-require-checker.json
 
 composer-unused: ## Ensure we don't require any package we don't use in this package directly
-	$(DOCKER_RUN) vendor/bin/composer-unused --ansi
+	$(DOCKER_RUN) vendor/bin/composer-unused --ansi --configuration=./etc/qa/composer-unused.php
 
 composer-install: ## Install dependencies
 	$(DOCKER_RUN) composer install --no-progress --ansi --no-interaction --prefer-dist -o
diff --git a/composer.json b/composer.json
index ea73cbb..6698d2f 100644
--- a/composer.json
+++ b/composer.json
@@ -50,11 +50,6 @@
     },
     "sort-packages": true
   },
-  "extra": {
-    "unused": [
-      "wyrihaximus/phpstan-react"
-    ]
-  },
   "scripts": {
     "post-install-cmd": [
       "composer normalize",
diff --git a/composer.lock b/composer.lock
index cd37508..99501e3 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": "0108907d93b5c5b3d948dfb56aeb8a99",
+    "content-hash": "0a3e698d7a926ece1d822a2fd4a5f8ce",
     "packages": [
         {
             "name": "amphp/amp",
diff --git a/etc/qa/composer-unused.php b/etc/qa/composer-unused.php
new file mode 100644
index 0000000..00c4f0d
--- /dev/null
+++ b/etc/qa/composer-unused.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+use ComposerUnused\ComposerUnused\Configuration\Configuration;
+use ComposerUnused\ComposerUnused\Configuration\NamedFilter;
+
+return static function (Configuration $config): Configuration {
+    return $config
+        ->addNamedFilter(NamedFilter::fromString('wyrihaximus/phpstan-react'));
+};