diff --git a/source/docs/v3/cached-lookup.blade.md b/source/docs/v3/cached-lookup.blade.md
index babc411..993ee00 100644
--- a/source/docs/v3/cached-lookup.blade.md
+++ b/source/docs/v3/cached-lookup.blade.md
@@ -30,4 +30,8 @@ DomainTenantResolver::$cacheTTL = 3600;
 // specify some cache store
 // null resolves to the default cache store
 DomainTenantResolver::$cacheStore = 'redis';
-```
\ No newline at end of file
+```
+
+## Cache invalidation
+
+Updating and saving a Tenant model's attributes will cause the cached entry for this model to be invalidated when `DomainTenantResolver::$shouldCache` is set to `true`.