diff --git a/.woodpecker/Build/composer.json b/.woodpecker/Build/composer.json
deleted file mode 100644
index 5d1f074..0000000
--- a/.woodpecker/Build/composer.json
+++ /dev/null
@@ -1,29 +0,0 @@
-{
-    "name": "digicomp/settingvalidator-distribution",
-    "description": "SettingValidator Distribution",
-    "config": {
-        "vendor-dir": "Packages/Libraries",
-        "bin-dir": "bin",
-        "platform": {
-            "php": "7.4.0"
-        }
-    },
-    "require": {
-        "digicomp/settingvalidator": "*@dev",
-        "php": "~7.4.0"
-    },
-    "require-dev": {
-        "neos/buildessentials": "^5.3",
-        "phpunit/phpunit": "~8.1",
-        "mikey179/vfsstream": "~1.6"
-    },
-    "repositories": [
-        { "type": "path", "url": "../../../src" }
-    ],
-    "scripts": {
-        "post-update-cmd": "Neos\\Flow\\Composer\\InstallerScripts::postUpdateAndInstall",
-        "post-install-cmd": "Neos\\Flow\\Composer\\InstallerScripts::postUpdateAndInstall",
-        "post-package-update": "Neos\\Flow\\Composer\\InstallerScripts::postPackageUpdateAndInstall",
-        "post-package-install": "Neos\\Flow\\Composer\\InstallerScripts::postPackageUpdateAndInstall"
-    }
-}
diff --git a/.woodpecker/test.yml b/.woodpecker/test.yml
index 8861184..1e7f30e 100644
--- a/.woodpecker/test.yml
+++ b/.woodpecker/test.yml
@@ -1,7 +1,26 @@
+workspace:
+  base: /woodpecker
+  path: package
+
+matrix:
+  NEOS_VERSION:
+    # - 4.3 not possible, because 4.3 does not run work with composer 2 - we had to install an older version of composer, too
+    - 5.3
+
 pipeline:
-  build:
-    image: composer
+  functional-tests:
+    image: thecodingmachine/php:7.4-v4-cli
+    environment:
+      # Enable the PDO_SQLITE extension
+      - "PHP_EXTENSION_PDO_SQLITE=1"
+      - "NEOS_VERSION=${NEOS_VERSION}"
+      - "NEOS_BUILD_DIR=/woodpecker/Build-$NEOS_VERSION"
     commands:
-      - cd .woodpecker/Build
-      - composer install
-      - bin/phpunit --configuration Build/BuildEssentials/PhpUnit/FunctionalTests.xml Packages/Application/DigiComp.SettingValidator/Tests/Functional
+      - "sudo mkdir $NEOS_BUILD_DIR"
+      - "sudo chown -R docker:docker $NEOS_BUILD_DIR"
+      - "cd $NEOS_BUILD_DIR"
+      - "composer create-project --no-install neos/flow-base-distribution:^$NEOS_VERSION ."
+      - "composer config repositories.repo-name path /woodpecker/package"
+      - "composer remove --dev neos/behat"
+      - "composer require digicomp/settingvalidator:@dev"
+      - "bin/phpunit --configuration Build/BuildEssentials/PhpUnit/FunctionalTests.xml Packages/Application/DigiComp.SettingValidator/Tests/Functional"