diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c5bf6e4..001cef2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,4 +24,7 @@ jobs:
             - name: Composer install
               run: composer install
 
+            - name: Run PHPUnit
+              run: vendor/bin/phpunit
+
 
diff --git a/composer.json b/composer.json
index 44f1050..d8077f7 100644
--- a/composer.json
+++ b/composer.json
@@ -6,6 +6,7 @@
     "license" : "MIT",
     "require" : {
         "php" : "^8.1",
+        "phpunit/phpunit": "^9.5",
         "composer/installers" : "~1.0",
         "kba-team/cakephp" : "^2.10",
         "josegonzalez/dotenv": "1.*",
diff --git a/phpunit.xml b/phpunit.xml
new file mode 100644
index 0000000..ecbb7ed
--- /dev/null
+++ b/phpunit.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.6/phpunit.xsd"
+         bootstrap="Test/bootstrap.php"
+         colors="true"
+         cacheResult="false"
+         executionOrder="depends,defects"
+         forceCoversAnnotation="false"
+         beStrictAboutCoversAnnotation="true"
+         beStrictAboutOutputDuringTests="true"
+         beStrictAboutTodoAnnotatedTests="true"
+         convertDeprecationsToExceptions="true"
+         failOnRisky="true"
+         failOnWarning="true"
+         verbose="true">
+    <testsuites>
+        <testsuite name="default">
+            <directory>Plugin/Filter/Test/Case</directory>
+        </testsuite>
+    </testsuites>
+    <listeners>
+        <listener class="CakeFixtureInjector" file="vendor/kba-team/cakephp/lib/Cake/TestSuite/Fixture/CakeFixtureInjector.php"/>
+    </listeners>
+</phpunit>