diff --git a/composer.json b/composer.json
index b5b4e5d..fdf7615 100644
--- a/composer.json
+++ b/composer.json
@@ -59,6 +59,7 @@
         "friendsofphp/php-cs-fixer": "^3.0",
         "kimai/kimai": "dev-main",
         "phpstan/phpstan": "^2.0",
+        "phpstan/phpstan-deprecation-rules": "^2.0",
         "phpstan/phpstan-doctrine": "^2.0",
         "phpstan/phpstan-strict-rules": "^2.0",
         "phpstan/phpstan-symfony": "^2.0"
diff --git a/phpstan.neon b/phpstan.neon
index f91aff3..bce88ac 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,19 +1,20 @@
 includes:
-    - %rootDir%/../phpstan-symfony/extension.neon
-    - %rootDir%/../phpstan-symfony/rules.neon
-    - %rootDir%/../phpstan-doctrine/extension.neon
-    - %rootDir%/../phpstan-doctrine/rules.neon
-    - %rootDir%/../phpstan-strict-rules/rules.neon
-    - %rootDir%/../phpstan/conf/bleedingEdge.neon
+  - %rootDir%/../phpstan-symfony/extension.neon
+  - %rootDir%/../phpstan-symfony/rules.neon
+  - %rootDir%/../phpstan-doctrine/extension.neon
+  - %rootDir%/../phpstan-doctrine/rules.neon
+  - %rootDir%/../phpstan-deprecation-rules/rules.neon
+  - %rootDir%/../phpstan-strict-rules/rules.neon
+  - %rootDir%/../phpstan/conf/bleedingEdge.neon
 
 parameters:
-    level: 7
-    excludePaths:
-      - vendor/(?)
-      - tests/(?)
-    scanDirectories:
-      - Migrations/
-    treatPhpDocTypesAsCertain: false
-    inferPrivatePropertyTypeFromConstructor: true
-    doctrine:
-      allowNullablePropertyForRequiredField: true
+  level: 7
+  excludePaths:
+    - vendor/(?)
+    - tests/(?)
+  scanDirectories:
+    - Migrations/
+  treatPhpDocTypesAsCertain: false
+  inferPrivatePropertyTypeFromConstructor: true
+  doctrine:
+    allowNullablePropertyForRequiredField: true