diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b41a900..267392d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,20 +10,18 @@ on:
 
 jobs:
   testsuite:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
-        php-version: ['7.2', '7.4', '8.0']
+        php-version: ['7.4', '8.0', '8.1']
         prefer-lowest: ['']
         include:
           - php-version: '7.2'
             prefer-lowest: 'prefer-lowest'
 
     steps:
-    - uses: actions/checkout@v1
-      with:
-        fetch-depth: 1
+    - uses: actions/checkout@v3
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
@@ -35,8 +33,8 @@ jobs:
     - name: Install packages
       run: |
         sudo apt install xfonts-base xfonts-75dpi
-        wget https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6-1/wkhtmltox_0.12.6-1.bionic_amd64.deb
-        sudo dpkg -i wkhtmltox_0.12.6-1.bionic_amd64.deb
+        wget https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6.1-2/wkhtmltox_0.12.6.1-2.jammy_amd64.deb
+        sudo dpkg -i wkhtmltox_0.12.6.1-2.jammy_amd64.deb
         sudo apt install -f
         wkhtmltopdf --version
 
@@ -44,9 +42,6 @@ jobs:
       run: |
         if ${{ matrix.prefer-lowest == 'prefer-lowest' }}; then
           composer update --prefer-lowest --prefer-stable
-        elif [[ ${{ matrix.php-version }} == '8.0' ]]; then
-          composer remove --dev mpdf/mpdf dompdf/dompdf
-          composer install
         else
           composer install
         fi
@@ -64,16 +59,14 @@ jobs:
 
     - name: Code Coverage Report
       if: matrix.php-version == '7.4'
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v3
 
   cs-stan:
     name: Coding Standard & Static Analysis
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
 
     steps:
-    - uses: actions/checkout@v1
-      with:
-        fetch-depth: 1
+    - uses: actions/checkout@v3
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
@@ -81,7 +74,7 @@ jobs:
         php-version: '7.4'
         extensions: mbstring, intl
         coverage: none
-        tools: cs2pr, psalm:^4.3, phpstan:^0.12
+        tools: cs2pr, vimeo/psalm:4.26, phpstan:1.8
 
     - name: Composer Install
       run: composer install
diff --git a/README.md b/README.md
index b68afea..b5a6630 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 Plugin containing CakePdf lib which will use a PDF engine to convert HTML to PDF.
 
 Engines included in the plugin:
-* DomPdf (^0.8)
+* DomPdf (^0.8. Using ^2.0 is highly recommended as lower versions have various security vulnerabilities)
 * Mpdf (^8.0.4)
 * Tcpdf (^6.3)
 * WkHtmlToPdf **RECOMMENDED ENGINE**
@@ -145,7 +145,7 @@ Configure::write('CakePdf', [
                 'url' => 'cover.html',
                 'enable-smart-shrinking' => true,
             ],
-            'toc' => true,            
+            'toc' => true,
         ],
 
         /**
@@ -294,8 +294,8 @@ try using file system paths instead for the assets.
 <img src="<?= WWW_ROOT ?>img/logo.png" />
 ```
 
-**Note:** Since v0.12.16 wkhtmltopdf requires the option `enable-local-file-access` 
-to be able to use local filesytem paths for assets. You can enable it by setting 
+**Note:** Since v0.12.16 wkhtmltopdf requires the option `enable-local-file-access`
+to be able to use local filesytem paths for assets. You can enable it by setting
 `'enable-local-file-access' => true` in the engine config array.
 
 ## Get header and footer on all pages
diff --git a/composer.json b/composer.json
index 7dfa6bd..b727cbb 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "~8.5.0 || ^9.3",
-        "dompdf/dompdf": "^0.8.6",
+        "dompdf/dompdf": "^2.0",
         "mpdf/mpdf": "^8.0.4",
         "tecnickcom/tcpdf": "^6.3",
         "cakephp/cakephp-codesniffer": "^4.2"
@@ -34,5 +34,10 @@
     },
     "replace": {
         "ceeram/cakepdf": "self.version"
+    },
+    "config": {
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true
+        }
     }
 }
diff --git a/phpstan.neon b/phpstan.neon
index 343d302..ac67f30 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -2,6 +2,7 @@ parameters:
     level: 6
     checkMissingIterableValueType: false
     bootstrapFiles:
+        - vendor/cakephp/cakephp/src/Core/Exception/CakeException.php
         - tests/bootstrap.php
     paths:
         - src
diff --git a/psalm.xml b/psalm.xml
index 5ac7025..0b28919 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0"?>
 <psalm
-    totallyTyped="false"
     resolveFromConfigFile="true"
     autoloader="tests/bootstrap.php"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
@@ -15,6 +14,10 @@
         </ignoreFiles>
     </projectFiles>
 
+    <stubs>
+        <file name="vendor/cakephp/cakephp/src/Core/Exception/CakeException.php" preloadClasses="true" />
+    </stubs>
+
     <issueHandlers>
         <LessSpecificReturnType errorLevel="info" />
 
diff --git a/src/Pdf/CakePdf.php b/src/Pdf/CakePdf.php
index 6e0613e..fef394d 100644
--- a/src/Pdf/CakePdf.php
+++ b/src/Pdf/CakePdf.php
@@ -347,7 +347,7 @@ public function write(string $destination, bool $create = true, ?string $html =
             return (bool)file_put_contents($destination, $output);
         }
 
-        if (!$fileInfo->isFile() && !$fileInfo->getPathInfo()->getRealPath()) {
+        if (!$fileInfo->getPathInfo()->getRealPath()) {
             mkdir($fileInfo->getPath(), 0777, true);
         }
 
@@ -372,11 +372,12 @@ public function engine($name = null): ?AbstractPdfEngine
             $name = $name['className'];
         }
 
+        /** @var class-string<\CakePdf\Pdf\Engine\AbstractPdfEngine>|null $engineClassName */
         $engineClassName = App::className($name, 'Pdf/Engine', 'Engine');
         if ($engineClassName === null) {
             throw new Exception(sprintf('Pdf engine "%s" not found', $name));
         }
-        if (!is_subclass_of($engineClassName, 'CakePdf\Pdf\Engine\AbstractPdfEngine')) {
+        if (!is_subclass_of($engineClassName, AbstractPdfEngine::class)) {
             throw new Exception('Pdf engines must extend "AbstractPdfEngine"');
         }
         $this->_engineClass = new $engineClassName($this);
diff --git a/tests/TestCase/Pdf/Engine/DomPdfEngineTest.php b/tests/TestCase/Pdf/Engine/DomPdfEngineTest.php
index d57270a..8aa5898 100644
--- a/tests/TestCase/Pdf/Engine/DomPdfEngineTest.php
+++ b/tests/TestCase/Pdf/Engine/DomPdfEngineTest.php
@@ -128,16 +128,16 @@ public function testControlFlow()
 
         $Engine = $Pdf->engine();
         $Engine
-            ->expects($this->at(0))
+            ->expects($this->once())
             ->method('_createInstance')
             ->willReturn($DomPDF);
         $Engine
-            ->expects($this->at(1))
+            ->expects($this->once())
             ->method('_render')
             ->with($Pdf, $DomPDF)
             ->willReturn($DomPDF);
         $Engine
-            ->expects($this->at(2))
+            ->expects($this->once())
             ->method('_output')
             ->with($DomPDF);
 
@@ -161,22 +161,22 @@ public function testDompdfControlFlow()
             ->method('_createInstance')
             ->will($this->returnCallback(function ($options) {
                 $Dompdf = $this->getMockBuilder('\Dompdf\Dompdf')
-                    ->setMethods(['setPaper', 'loadHtml', 'render', 'output'])
+                    ->onlyMethods(['setPaper', 'loadHtml', 'render', 'output'])
                     ->setConstructorArgs([$options])
                     ->getMock();
                 $Dompdf
-                    ->expects($this->at(0))
+                    ->expects($this->once())
                     ->method('setPaper')
                     ->with('A4', 'portrait');
                 $Dompdf
-                    ->expects($this->at(1))
+                    ->expects($this->once())
                     ->method('loadHtml')
                     ->with(null);
                 $Dompdf
-                    ->expects($this->at(2))
+                    ->expects($this->once())
                     ->method('render');
                 $Dompdf
-                    ->expects($this->at(3))
+                    ->expects($this->once())
                     ->method('output');
 
                 return $Dompdf;
diff --git a/tests/TestCase/Pdf/Engine/WkHtmlToPdfEngineTest.php b/tests/TestCase/Pdf/Engine/WkHtmlToPdfEngineTest.php
index 6a4f42d..cfa184d 100644
--- a/tests/TestCase/Pdf/Engine/WkHtmlToPdfEngineTest.php
+++ b/tests/TestCase/Pdf/Engine/WkHtmlToPdfEngineTest.php
@@ -150,6 +150,10 @@ public function testGetCommand()
 
     public function testCoverUrlMissing()
     {
+        if (!shell_exec('which wkhtmltopdf')) {
+            $this->markTestSkipped('wkhtmltopdf not found');
+        }
+
         $this->expectException(Exception::class);
         $this->expectExceptionMessage('The url for the cover is missing. Use the "url" index.');