diff --git a/composer.json b/composer.json
index 274db88..ca4b165 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
   },
   "require-dev": {
     "squizlabs/php_codesniffer": "^3.5",
-    "phpstan/phpstan": "^0.12.81",
+    "phpstan/phpstan": "^1.11",
     "composer/composer": "^2.0"
   }
 }
diff --git a/phpstan.neon b/phpstan.neon
index bcb8b11..a64d774 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,7 +1,7 @@
 parameters:
-  level: 2
+  level: 5
   paths:
     - src
 
-  excludes_analyse:
-    - vendor
+  excludePaths:
+    - vendor/*