diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 3d4e99e..f1c7c66 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -17,12 +17,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2']
+        php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
         os: ['ubuntu-latest']
 
     steps:
       - name: Checkout code base
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -31,11 +31,7 @@ jobs:
           tools: phpcs
 
       - name: Setup dependencies
-        run: |
-          composer require -n --no-progress overtrue/phplint
-          git clone --depth 1 https://github.com/Icinga/icingaweb2.git vendor/icingaweb2
-          git clone --depth 1 -b snapshot/nightly https://github.com/Icinga/icinga-php-library.git vendor/icinga-php-library
-          git clone --depth 1 -b snapshot/nightly https://github.com/Icinga/icinga-php-thirdparty.git vendor/icinga-php-thirdparty
+        run: composer require -n --no-progress overtrue/phplint
 
       - name: PHP Lint
         if: ${{ ! cancelled() }}
@@ -44,7 +40,3 @@ jobs:
       - name: PHP CodeSniffer
         if: ${{ ! cancelled() }}
         run: phpcs
-
-      - name: PHPStan
-        if: ${{ ! cancelled() }}
-        uses: php-actions/phpstan@v3
diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
new file mode 100644
index 0000000..b4cae62
--- /dev/null
+++ b/.github/workflows/phpstan.yml
@@ -0,0 +1,15 @@
+name: PHPStan
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  phpstan:
+    uses: icinga/github-actions/.github/workflows/phpstan.yml@main
+    with:
+      dependencies: |
+        {
+          "/icingaweb2" : "https://github.com/Icinga/icingaweb2.git"
+        }
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 6dbadd6..391545a 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -47,7 +47,7 @@ parameters:
 
 		-
 			message: "#^Cannot access offset 'error' on mixed\\.$#"
-			count: 3
+			count: 1
 			path: library/Pdfexport/HeadlessChrome.php
 
 		-
diff --git a/phpstan.neon b/phpstan.neon
index 54826ac..4b14954 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -20,7 +20,8 @@ parameters:
             reportUnmatched: false
 
     scanDirectories:
-        - vendor
+        - /icingaweb2
+        - /usr/share/icinga-php
 
     universalObjectCratesClasses:
         - Icinga\Web\View