diff --git a/modules/lambda@edge/main.tf b/modules/lambda@edge/main.tf
index a48947df..c032d434 100644
--- a/modules/lambda@edge/main.tf
+++ b/modules/lambda@edge/main.tf
@@ -78,8 +78,8 @@ resource "aws_lambda_function" "default" {
   function_name    = module.function_label[each.key].id
   runtime          = each.value.runtime
   handler          = each.value.handler
-  memory_size      = each.value.memory_size != null ? each.value.memory_size : 128
-  timeout          = each.value.timeout != null ? each.value.timeout : 3
+  memory_size      = each.value.memory_size
+  timeout          = each.value.timeout
   role             = module.role[each.key].arn
   filename         = each.value.source_zip != null ? data.local_file.lambda_zip[each.key].filename : data.archive_file.lambda_zip[each.key].output_path
   source_code_hash = each.value.source_zip != null ? sha256(data.local_file.lambda_zip[each.key].content_base64) : data.archive_file.lambda_zip[each.key].output_base64sha256
diff --git a/modules/lambda@edge/variables.tf b/modules/lambda@edge/variables.tf
index af76c78e..ddf4074b 100644
--- a/modules/lambda@edge/variables.tf
+++ b/modules/lambda@edge/variables.tf
@@ -29,8 +29,8 @@ variable "functions" {
     source_zip   = optional(string)
     runtime      = string
     handler      = string
-    memory_size  = optional(number)
-    timeout      = optional(number)
+    memory_size  = number
+    timeout      = number
     event_type   = string
     include_body = bool
   }))