diff --git a/composer.json b/composer.json
index 6673a4b..8f86c6e 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,8 @@
   },
   "require-dev": {
     "phpunit/phpunit": "^9.0",
-    "rector/rector": "^0.13.7"
+    "rector/rector": "^0.13.7",
+    "phpstan/phpstan": "^1.8"
   },
   "autoload": {
     "psr-4": {
diff --git a/composer.lock b/composer.lock
index f82a735..59986a3 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": "73eba85f9a7262ebc53f6fad1fe3c7d8",
+    "content-hash": "6b092682644fef66d759ad40475e1f2e",
     "packages": [
         {
             "name": "laravel/pint",
diff --git a/phpstan.neon b/phpstan.neon
new file mode 100644
index 0000000..e05e39d
--- /dev/null
+++ b/phpstan.neon
@@ -0,0 +1,5 @@
+parameters:
+	level: 6
+	paths:
+		- src
+		- tests
\ No newline at end of file