diff --git a/.phive/phars.xml b/.phive/phars.xml
index 63a030f34ebaa167a4ac0c278a66d42d6f1d11e6..ebb5988ac5456a0286d35a530df2673a49c57c2b 100644
--- a/.phive/phars.xml
+++ b/.phive/phars.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phive xmlns="https://phar.io/phive">
-  <phar name="phpstan" version="1.11.1" installed="1.11.1" location="./tools/phpstan" copy="false"/>
+  <phar name="phpstan" version="1.11.8" installed="1.11.8" location="./tools/phpstan" copy="false"/>
   <phar name="phpunit" version="^10.5.20" installed="10.5.20" location="./tools/phpunit" copy="false"/>
   <phar name="phpcs" version="^3.10.1" installed="3.10.1" location="./tools/phpcs" copy="false"/>
   <phar name="phpcbf" version="^3.10.1" installed="3.10.1" location="./tools/phpcbf" copy="false"/>
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..21535088260aa3415906fbab59b8c921aec9b5dc 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -0,0 +1,26 @@
+parameters:
+	ignoreErrors:
+		-
+			message: "#^Strict comparison using \\=\\=\\= between mixed and '' will always evaluate to false\\.$#"
+			count: 1
+			path: src/QUI/Menu/Bricks/Submenu.php
+
+		-
+			message: "#^Call to an undefined method QUI\\\\Interfaces\\\\Projects\\\\Site\\:\\:getCachePath\\(\\)\\.$#"
+			count: 1
+			path: src/QUI/Menu/DropDownMenu.php
+
+		-
+			message: "#^Parameter \\#1 \\$menuId of static method QUI\\\\Menu\\\\Independent\\\\Handler\\:\\:getMenu\\(\\) expects int, string\\|false given\\.$#"
+			count: 1
+			path: src/QUI/Menu/Independent/Factory.php
+
+		-
+			message: "#^Call to an undefined method QUI\\\\Interfaces\\\\Projects\\\\Site\\:\\:getCachePath\\(\\)\\.$#"
+			count: 1
+			path: src/QUI/Menu/MegaMenu.php
+
+		-
+			message: "#^Variable \\$Site in PHPDoc tag @var does not match any variable in the foreach loop\\: \\$data, \\$dataSet$#"
+			count: 1
+			path: src/QUI/Menu/NavTabs.php
diff --git a/phpstan.dist.neon b/phpstan.dist.neon
index c3a27e80ad3fe5b77ed44755ec39d3a4fa61e057..d6e0dec5f5256315b141c310dc6ee629e0133c31 100644
--- a/phpstan.dist.neon
+++ b/phpstan.dist.neon
@@ -2,7 +2,7 @@ includes:
     - phpstan-baseline.neon
 
 parameters:
-    level: 1
+    level: 5
     paths:
         - src
         - ajax