diff --git a/README.md b/README.md
index 189c812..1fd11a3 100644
--- a/README.md
+++ b/README.md
@@ -842,6 +842,7 @@ parameters:
     checkUninitializedProperties: true                        # https://phpstan.org/config-reference#checkuninitializedproperties
     checkMissingCallableSignature: true                       # https://phpstan.org/config-reference#vague-typehints
     checkTooWideReturnTypesInProtectedAndPublicMethods: true  # https://phpstan.org/config-reference#checktoowidereturntypesinprotectedandpublicmethods
+    reportAnyTypeWideningInVarTag: true                       # https://phpstan.org/config-reference#reportanytypewideninginvartag
 ```
 
 ## Contributing