diff --git a/phpstan.neon b/phpstan.neon
index f8e3b682..7bf7c607 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -10,11 +10,6 @@ parameters:
             count: 3
             path: src/LtiMessageLaunch.php
 
-        -
-            message: "#Access to an undefined property (Tests|Certification)\\\\#"
-            paths:
-                - tests/*
-
         -
             message: "#Call to an undefined method Mockery\\\\#"
             paths: