diff --git a/composer.json b/composer.json
index dff1b18..f7d471a 100644
--- a/composer.json
+++ b/composer.json
@@ -13,13 +13,13 @@
     "require-dev": {
         "editorconfig-checker/editorconfig-checker": "^10.6.0",
         "ergebnis/composer-normalize": "^2.44.0",
-        "phpstan/phpstan": "^1.12.7",
-        "phpstan/phpstan-phpunit": "^1.4.0",
-        "phpstan/phpstan-strict-rules": "^1.6.1",
+        "phpstan/phpstan": "^2.0.1",
+        "phpstan/phpstan-phpunit": "^2.0.0",
+        "phpstan/phpstan-strict-rules": "^2.0.0",
         "phpunit/phpunit": "^10.5",
         "shipmonk/composer-dependency-analyser": "^1.7",
         "shipmonk/name-collision-detector": "^2.1.1",
-        "shipmonk/phpstan-rules": "^3.2.1",
+        "shipmonk/phpstan-rules": "^4.0.0",
         "slevomat/coding-standard": "^8.15.0"
     },
     "autoload": {
@@ -53,7 +53,7 @@
         "check:dependencies": "composer-dependency-analyser",
         "check:ec": "ec src tests",
         "check:tests": "phpunit tests",
-        "check:types": "phpstan analyse -vvv",
+        "check:types": "phpstan analyse -vv",
         "fix:cs": "phpcbf"
     }
 }
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index a782f1c..64f3e38 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -1,5 +1,4 @@
 includes:
-    - phar://phpstan.phar/conf/config.levelmax.neon
     - phar://phpstan.phar/conf/bleedingEdge.neon
     - ./vendor/phpstan/phpstan-phpunit/extension.neon
     - ./vendor/phpstan/phpstan-phpunit/rules.neon
@@ -7,6 +6,7 @@ includes:
     - ./vendor/shipmonk/phpstan-rules/rules.neon
 
 parameters:
+    level: 9
     paths:
         - src
         - tests