diff --git a/main.tf b/main.tf
index 781e8b0..78dd3f4 100644
--- a/main.tf
+++ b/main.tf
@@ -9,6 +9,7 @@ locals {
   source_code_hash           = var.source_code_hash != null ? var.source_code_hash : var.filename != null ? filebase64sha256(var.filename) : null
   tracing_config             = var.tracing_config_mode != null ? { create : true } : {}
   vpc_config                 = var.subnet_ids != null ? { create : true } : {}
+  vpc_id                     = var.vpc_id != null ? var.vpc_id : data.aws_subnet.selected[0].vpc_id
 }
 
 data "aws_iam_policy_document" "default" {
@@ -77,7 +78,7 @@ resource "aws_security_group" "default" {
   name        = var.security_group_name_prefix == null ? var.name : null
   name_prefix = var.security_group_name_prefix != null ? var.security_group_name_prefix : null
   description = "Security group for lambda ${var.name}"
-  vpc_id      = data.aws_subnet.selected[0].vpc_id
+  vpc_id      = local.vpc_id
   tags        = var.tags
 
   lifecycle {
diff --git a/variables.tf b/variables.tf
index c5ec2c0..0a4b2a4 100644
--- a/variables.tf
+++ b/variables.tf
@@ -231,3 +231,9 @@ variable "tracing_config_mode" {
   default     = null
   description = "The lambda's AWS X-Ray tracing configuration"
 }
+
+variable "vpc_id" {
+  type        = string
+  default     = null
+  description = "The VPC ID where this Lambda needs to run"
+}