diff --git a/composer.json b/composer.json
index aacd6d80..c7a2cf76 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
     "ext-tokenizer": "*"
   },
   "require-dev": {
-    "ergebnis/composer-normalize": "^2.15.0",
+    "ergebnis/composer-normalize": "^2.16.0",
     "ergebnis/license": "^1.1.0",
     "ergebnis/php-cs-fixer-config": "^2.14.0",
     "ergebnis/phpstan-rules": "~0.15.3",
diff --git a/composer.lock b/composer.lock
index 058ad1da..09079d51 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": "e0121662a17b7f29b2024b045e7f7352",
+    "content-hash": "343e6e9abf1595a3955e1ba7f27256db",
     "packages": [],
     "packages-dev": [
         {
@@ -651,41 +651,35 @@
         },
         {
             "name": "ergebnis/composer-normalize",
-            "version": "2.15.0",
+            "version": "2.16.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/ergebnis/composer-normalize.git",
-                "reference": "d469a15b916441959446d52a0f5d3fc9f7720317"
+                "reference": "21eb186aa37247544674ee75aa4139c1cade7a64"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/ergebnis/composer-normalize/zipball/d469a15b916441959446d52a0f5d3fc9f7720317",
-                "reference": "d469a15b916441959446d52a0f5d3fc9f7720317",
+                "url": "https://api.github.com/repos/ergebnis/composer-normalize/zipball/21eb186aa37247544674ee75aa4139c1cade7a64",
+                "reference": "21eb186aa37247544674ee75aa4139c1cade7a64",
                 "shasum": ""
             },
             "require": {
-                "composer-plugin-api": "^1.1.0 || ^2.0.0",
+                "composer-plugin-api": "^2.0.0",
                 "ergebnis/json-normalizer": "^1.0.3",
                 "ergebnis/json-printer": "^3.1.1",
-                "justinrainbow/json-schema": "^5.2.10",
+                "justinrainbow/json-schema": "^5.2.11",
                 "localheinz/diff": "^1.1.1",
                 "php": "^7.2 || ^8.0"
             },
             "require-dev": {
-                "composer/composer": "^1.10.22 || ^2.0.13",
+                "composer/composer": "^2.1.12",
                 "ergebnis/license": "^1.1.0",
                 "ergebnis/php-cs-fixer-config": "^2.14.0",
-                "ergebnis/phpstan-rules": "~0.15.3",
                 "ergebnis/test-util": "^1.5.0",
-                "phpstan/extension-installer": "^1.1.0",
-                "phpstan/phpstan": "~0.12.89",
-                "phpstan/phpstan-deprecation-rules": "~0.12.6",
-                "phpstan/phpstan-phpunit": "~0.12.19",
-                "phpstan/phpstan-strict-rules": "~0.12.9",
-                "phpunit/phpunit": "^8.5.16",
-                "psalm/plugin-phpunit": "~0.16.0",
-                "symfony/filesystem": "^5.3.0",
-                "vimeo/psalm": "^4.7.3"
+                "phpunit/phpunit": "^8.5.21",
+                "psalm/plugin-phpunit": "~0.16.1",
+                "symfony/filesystem": "^5.3.4",
+                "vimeo/psalm": "^4.12.0"
             },
             "type": "composer-plugin",
             "extra": {
@@ -728,7 +722,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2021-06-15T08:06:45+00:00"
+            "time": "2021-11-22T10:23:09+00:00"
         },
         {
             "name": "ergebnis/json-normalizer",