diff --git a/composer.json b/composer.json
index eaeb48bfde05bd26b80e325c6cf50d49d9dfae13..6fbe45fb1b2ecbf55923b5c87b660d2342620dfb 100644
--- a/composer.json
+++ b/composer.json
@@ -64,6 +64,7 @@
         "phpmetrics/phpmetrics": "^2.8",
         "phpspec/prophecy": "*",
         "phpspec/prophecy-phpunit": "*",
+        "phpstan/extension-installer": "^1.3",
         "phpstan/phpstan-deprecation-rules": "*",
         "phpunit/phpunit": "*",
         "squizlabs/php_codesniffer": "*",
diff --git a/defaults/phpstan.neon b/defaults/phpstan.neon
index 3229b41a18d5754e86334140cce853d1abf8df38..4d9e24696b66bed0d0cc8e0e578165b9ad70d4b7 100644
--- a/defaults/phpstan.neon
+++ b/defaults/phpstan.neon
@@ -14,6 +14,3 @@ parameters:
     - '#Plugin definitions cannot be altered.#'
   excludePaths:
     - '*/tests/*.php'
-includes:
-  - /var/www/html/vendor/mglaman/phpstan-drupal/extension.neon
-  - /var/www/html/vendor/phpstan/phpstan-deprecation-rules/rules.neon