diff --git a/terraform/modules/ec2/main.tf b/terraform/modules/ec2/main.tf
index 6ba3433..2e47067 100644
--- a/terraform/modules/ec2/main.tf
+++ b/terraform/modules/ec2/main.tf
@@ -45,6 +45,37 @@ resource "aws_instance" "mongodb" {
     volume_type = "gp3"
   }
 
+  user_data = <<-EOF
+              #!/bin/bash
+              set -e
+              
+              # Update system
+              yum update -y
+              
+              # Add MongoDB repository
+              cat > /etc/yum.repos.d/mongodb-org-7.0.repo <<'REPO'
+[mongodb-org-7.0]
+name=MongoDB Repository
+baseurl=https://repo.mongodb.org/yum/amazon/2023/mongodb-org/7.0/x86_64/
+gpgcheck=1
+enabled=1
+gpgkey=https://pgp.mongodb.com/server-7.0.asc
+REPO
+              
+              # Install MongoDB
+              yum install -y mongodb-org
+              
+              # Configure MongoDB to listen on all interfaces
+              sed -i 's/bindIp: 127.0.0.1/bindIp: 0.0.0.0/' /etc/mongod.conf
+              
+              # Start and enable MongoDB
+              systemctl start mongod
+              systemctl enable mongod
+              
+              # Log completion
+              echo "MongoDB installation completed" > /var/log/mongodb-install.log
+              EOF
+
   tags = {
     Name        = "MongoDB-${var.environment}"
     Environment = var.environment
diff --git a/terraform/stacks/production/terraform.tfvars b/terraform/stacks/production/terraform.tfvars
index 391204e..676039a 100644
--- a/terraform/stacks/production/terraform.tfvars
+++ b/terraform/stacks/production/terraform.tfvars
@@ -3,5 +3,5 @@ aws_region       = "us-west-2"
 instance_type    = "t3.large"
 key_name         = "ashish-test-kp"
 vpc_id           = "vpc-0c4669393c94b8f86"
-ami_id           = "ami-001fbc42d7df13f78"
+ami_id           = "ami-075b5421f670d735c" # Amazon Linux 2023
 root_volume_size = 20
diff --git a/terraform/stacks/staging/terraform.tfvars b/terraform/stacks/staging/terraform.tfvars
index f5e015d..f2f6dfe 100644
--- a/terraform/stacks/staging/terraform.tfvars
+++ b/terraform/stacks/staging/terraform.tfvars
@@ -3,5 +3,5 @@ aws_region       = "us-west-2"
 instance_type    = "t3.small"
 key_name         = "ashish-test-kp"
 vpc_id           = "vpc-0c4669393c94b8f86"
-ami_id           = "ami-001fbc42d7df13f78"
+ami_id           = "ami-075b5421f670d735c" # Amazon Linux 2023
 root_volume_size = 10