diff --git a/variables.tf b/variables.tf
index eb07158..60c6aae 100644
--- a/variables.tf
+++ b/variables.tf
@@ -324,7 +324,7 @@ variable "serverless_user_group_id" {
 
 variable "serverless_cache_usage_limits" {
   type        = map(any)
-  default     = {}
+  default     = null
   description = "The usage limits for the serverless cache"
 }