diff --git a/Containerfile b/Containerfile
index 51f0222..d57b734 100644
--- a/Containerfile
+++ b/Containerfile
@@ -4,4 +4,4 @@ WORKDIR /code
 COPY --from=composer:2 /usr/bin/composer /usr/bin/composer
 COPY ./ /code
 
-RUN composer install
\ No newline at end of file
+RUN composer install
diff --git a/Makefile b/Makefile
index b5199a3..e8eec65 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,7 @@
 PHP = docker compose run php
 
+.PHONY: composer_install composer_update static_analysis tests
+
 composer_install:
 	@$(PHP) composer install
 
@@ -8,3 +10,7 @@ composer_update:
 
 static_analysis:
 	@$(PHP) vendor/bin/psalm
+
+tests:
+	@$(PHP) rm -rf var/cache
+	@$(PHP) vendor/bin/phpunit
diff --git a/phpunit.xml b/phpunit.xml
deleted file mode 100644
index e8f8e0c..0000000
--- a/phpunit.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<phpunit colors="true" bootstrap="vendor/autoload.php">
-    <testsuites>
-        <testsuite name="Test Suite">
-            <directory suffix="Test.php">./tests/</directory>
-        </testsuite>
-    </testsuites>
-    <filter>
-        <whitelist>
-            <directory>./src</directory>
-        </whitelist>
-    </filter>
-</phpunit>
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
new file mode 100644
index 0000000..60cb564
--- /dev/null
+++ b/phpunit.xml.dist
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd" backupGlobals="false" colors="true" bootstrap="./vendor/autoload.php">
+    <coverage>
+        <include>
+            <directory>./src</directory>
+        </include>
+    </coverage>
+    <php>
+        <ini name="error_reporting" value="-1"/>
+        <ini name="intl.default_locale" value="en"/>
+        <ini name="intl.error_level" value="0"/>
+        <ini name="memory_limit" value="-1"/>
+    </php>
+    <testsuites>
+        <testsuite name="Test suite">
+            <directory suffix="Test.php">./tests</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>