diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 7c87780..08566d0 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -1,5 +1,5 @@
 parameters:
-    level: 7
+    level: 9
     paths:
         - src
         - tests