diff --git a/.gitattributes b/.gitattributes
index 9645b77e9..480910e66 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -3,9 +3,10 @@
 .env.dist              export-ignore
 .gitattributes         export-ignore
 .github/               export-ignore
+.phpstan/              export-ignore
 .gitignore             export-ignore
 .php-cs-fixer.dist.php export-ignore
 docker-compose.yml     export-ignore
-phpstan.neon           export-ignore
+phpstan.neon.dist      export-ignore
 phpunit.xml            export-ignore
 tests/                 export-ignore
diff --git a/.gitignore b/.gitignore
index 3c17d4767..bcdf92517 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@ lib/plugins/sfDoctrinePlugin/test/functional/fixtures/log/
 /vendor
 /composer.lock
 .php-cs-fixer.cache
+phpstan.neon
diff --git a/.phpstan/bootstrap.php b/.phpstan/bootstrap.php
new file mode 100644
index 000000000..f05a5766a
--- /dev/null
+++ b/.phpstan/bootstrap.php
@@ -0,0 +1,9 @@
+<?php
+
+class ProjectConfiguration extends sfProjectConfiguration
+{
+}
+
+class BaseForm extends sfForm
+{
+}
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
new file mode 100644
index 000000000..77af86af8
--- /dev/null
+++ b/phpstan.neon.dist
@@ -0,0 +1,12 @@
+parameters:
+    level: 9
+    errorFormat: table
+    bootstrapFiles:
+        - .phpstan/bootstrap.php
+    paths:
+        - lib
+        - test
+    excludePaths:
+        analyse:
+            - lib/task/symfony/lime_symfony.php
+            - lib/task/symfony/sfSymfonyTestTask.class.php