diff --git a/composer.json b/composer.json
index 0b8b89ab..8bfb2f5a 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
     "friendsofphp/php-cs-fixer": "~2.16.0"
   },
   "require-dev": {
-    "ergebnis/composer-normalize": "^2.0.2",
+    "ergebnis/composer-normalize": "^2.2.0",
     "ergebnis/phpstan-rules": "~0.14.2",
     "ergebnis/test-util": "~0.9.1",
     "infection/infection": "~0.13.6",
diff --git a/composer.lock b/composer.lock
index d98767e8..24ac1f08 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": "119de366dcb1aaff5c3c6b90fe7e0f7b",
+    "content-hash": "2ba928b518040d72f2877a00711985e5",
     "packages": [
         {
             "name": "composer/semver",
@@ -1685,16 +1685,16 @@
         },
         {
             "name": "ergebnis/composer-normalize",
-            "version": "2.0.2",
+            "version": "2.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/ergebnis/composer-normalize.git",
-                "reference": "523deef61bb9bc45ce6b5f9a19d3bba8a06cbfcd"
+                "reference": "38a8ce53a18e0c6b1e00eb3da57c27d695fe38df"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/ergebnis/composer-normalize/zipball/523deef61bb9bc45ce6b5f9a19d3bba8a06cbfcd",
-                "reference": "523deef61bb9bc45ce6b5f9a19d3bba8a06cbfcd",
+                "url": "https://api.github.com/repos/ergebnis/composer-normalize/zipball/38a8ce53a18e0c6b1e00eb3da57c27d695fe38df",
+                "reference": "38a8ce53a18e0c6b1e00eb3da57c27d695fe38df",
                 "shasum": ""
             },
             "require": {
@@ -1710,11 +1710,12 @@
                 "ergebnis/php-cs-fixer-config": "~1.1.2",
                 "ergebnis/phpstan-rules": "~0.14.2",
                 "ergebnis/test-util": "~0.9.1",
-                "jangregor/phpstan-prophecy": "~0.5.0",
+                "jangregor/phpstan-prophecy": "~0.6.0",
                 "phpstan/extension-installer": "^1.0.3",
-                "phpstan/phpstan": "~0.11.19",
-                "phpstan/phpstan-deprecation-rules": "~0.11.2",
-                "phpstan/phpstan-strict-rules": "~0.11.1",
+                "phpstan/phpstan": "~0.12.3",
+                "phpstan/phpstan-deprecation-rules": "~0.12.0",
+                "phpstan/phpstan-phpunit": "~0.12.3",
+                "phpstan/phpstan-strict-rules": "~0.12.0",
                 "phpunit/phpunit": "^7.5.18",
                 "symfony/filesystem": "^4.4.1"
             },
@@ -1745,7 +1746,7 @@
                 "normalizer",
                 "plugin"
             ],
-            "time": "2019-12-19T21:54:28+00:00"
+            "time": "2020-01-01T11:15:02+00:00"
         },
         {
             "name": "ergebnis/json-normalizer",