diff --git a/phpstan-safe-rule.neon b/phpstan-safe-rule.neon
index 34b0346..9d714f1 100644
--- a/phpstan-safe-rule.neon
+++ b/phpstan-safe-rule.neon
@@ -3,6 +3,10 @@ services:
     class: TheCodingMachine\Safe\PHPStan\Rules\UseSafeFunctionsRule
     tags:
       - phpstan.rules.rule
+  -
+    class: TheCodingMachine\Safe\PHPStan\Rules\UseSafeClassesRule
+    tags:
+      - phpstan.rules.rule
   -
     class: TheCodingMachine\Safe\PHPStan\Type\Php\ReplaceSafeFunctionsDynamicReturnTypeExtension
     tags: