diff --git a/composer.json b/composer.json
index 59b526f5..f439a45a 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
     "doctrine/coding-standard": "^8.1.0",
     "ergebnis/composer-normalize": "^2.8.2",
     "ergebnis/license": "^1.1.0",
-    "ergebnis/test-util": "^1.1.0",
+    "ergebnis/test-util": "^1.3.0",
     "infection/infection": "^0.15.3",
     "jangregor/phpstan-prophecy": "^0.8.0",
     "maglnet/composer-require-checker": "^2.1.0",
diff --git a/composer.lock b/composer.lock
index 761a10cf..4bcb50dc 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": "fa42d6c2d747f300c1c8c41665dd828d",
+    "content-hash": "88865ef764356235d854a22b51f524da",
     "packages": [
         {
             "name": "amphp/amp",
@@ -2851,16 +2851,16 @@
         },
         {
             "name": "ergebnis/test-util",
-            "version": "1.1.0",
+            "version": "1.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/ergebnis/test-util.git",
-                "reference": "bbb15e417b44044a93ac083fa1d73ae5551c7505"
+                "reference": "6dd7ff94848c5f8f98321192a9405fe7fe8251f9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/ergebnis/test-util/zipball/bbb15e417b44044a93ac083fa1d73ae5551c7505",
-                "reference": "bbb15e417b44044a93ac083fa1d73ae5551c7505",
+                "url": "https://api.github.com/repos/ergebnis/test-util/zipball/6dd7ff94848c5f8f98321192a9405fe7fe8251f9",
+                "reference": "6dd7ff94848c5f8f98321192a9405fe7fe8251f9",
                 "shasum": ""
             },
             "require": {
@@ -2869,19 +2869,19 @@
                 "php": "^7.2 || ^8.0"
             },
             "require-dev": {
-                "ergebnis/composer-normalize": "^2.7.1",
-                "ergebnis/license": "^1.0.0",
-                "ergebnis/php-cs-fixer-config": "^2.2.1",
+                "ergebnis/composer-normalize": "^2.8.2",
+                "ergebnis/license": "^1.1.0",
+                "ergebnis/php-cs-fixer-config": "^2.2.2",
                 "ergebnis/phpstan-rules": "~0.15.2",
                 "infection/infection": "~0.15.3",
-                "phpstan/extension-installer": "^1.0.4",
-                "phpstan/phpstan": "~0.12.40",
+                "phpstan/extension-installer": "^1.0.5",
+                "phpstan/phpstan": "~0.12.48",
                 "phpstan/phpstan-deprecation-rules": "~0.12.5",
                 "phpstan/phpstan-phpunit": "~0.12.16",
-                "phpstan/phpstan-strict-rules": "~0.12.4",
+                "phpstan/phpstan-strict-rules": "~0.12.5",
                 "phpunit/phpunit": "^8.5.8",
-                "psalm/plugin-phpunit": "~0.11.0",
-                "vimeo/psalm": "^3.14.2"
+                "psalm/plugin-phpunit": "~0.12.2",
+                "vimeo/psalm": "^3.16"
             },
             "type": "library",
             "autoload": {
@@ -2899,7 +2899,7 @@
                     "email": "am@localheinz.com"
                 }
             ],
-            "description": "Provides utilities for tests.",
+            "description": "Provides a helper trait and generic data providers for tests.",
             "homepage": "https://github.com/ergebnis/test-util",
             "keywords": [
                 "assertion",
@@ -2913,7 +2913,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2020-08-30T10:56:49+00:00"
+            "time": "2020-10-05T12:15:43+00:00"
         },
         {
             "name": "fzaninotto/faker",