diff --git a/phpunit.xml b/phpunit.xml
index 059b81c..6430dc3 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
     backupGlobals="false" backupStaticAttributes="false"
-    beStrictAboutChangesToGlobalState="true" beStrictAboutOutputDuringTests="false" beStrictAboutResourceUsageDuringSmallTests="true" beStrictAboutTodoAnnotatedTests="true" beStrictAboutCoversAnnotation="false"
+    beStrictAboutChangesToGlobalState="true" beStrictAboutOutputDuringTests="true" beStrictAboutResourceUsageDuringSmallTests="true" beStrictAboutTodoAnnotatedTests="true" beStrictAboutCoversAnnotation="false"
     bootstrap="tests/bootstrap.php"
     cacheResult="false"
     colors="true"