diff --git a/phpstan.neon b/phpstan.neon
deleted file mode 100644
index b4dc176..0000000
--- a/phpstan.neon
+++ /dev/null
@@ -1,7 +0,0 @@
-parameters:
-	ergebnis:
-		classesAllowedToBeExtended:
-		    - ApiClients\Tools\TestUtilities\TestCase
-
-includes:
-	- vendor/wyrihaximus/async-test-utilities/rules.neon
diff --git a/rules.neon b/rules.neon
index bcfda42..5b6ca75 100644
--- a/rules.neon
+++ b/rules.neon
@@ -1,6 +1,7 @@
 parameters:
-	classesAllowedToBeExtended:
-		- ApiClients\Tools\TestUtilities\TestCase
+	ergebnis:
+		classesAllowedToBeExtended:
+		    - ApiClients\Tools\TestUtilities\TestCase
 
 includes:
-	- ../../wyrihaximus/async-test-utilities/rules.neon
\ No newline at end of file
+	- ../../wyrihaximus/async-test-utilities/rules.neon