diff --git a/web_api/terraform/main.tf b/web_api/terraform/main.tf
index f8bb83d2..87883741 100644
--- a/web_api/terraform/main.tf
+++ b/web_api/terraform/main.tf
@@ -11,6 +11,7 @@ terraform {
   }
 }
 
+
 # Data source to find the latest Ubuntu AMI
 data "aws_ami" "ubuntu" {
   most_recent = true
@@ -75,7 +76,7 @@ resource "aws_instance" "app" {
   instance_type = var.instance_type
   subnet_id     = aws_subnet.main.id
   key_name      = "dsst2023"
-  security_groups = [aws_security_group.app.name]
+  vpc_security_group_ids = [aws_security_group.app.id]
 
   tags = {
     Name = "${var.environment}-instance"
diff --git a/web_api/terraform/variables.tf b/web_api/terraform/variables.tf
index 76abee1b..696db287 100644
--- a/web_api/terraform/variables.tf
+++ b/web_api/terraform/variables.tf
@@ -23,14 +23,6 @@ variable "security_group_ids" {
   type        = list(string)
 }
 
-variable "mongodb_uri" {
-  description = "MongoDB URI for state locking"
-}
-
-variable "mongodb_db" {
-  description = "MongoDB Database for state locking"
-}
-
 variable "domain" {
   description = "Domain for Traefik"
   default     = "osm.nimh.nih.gov"