diff --git a/main.tf b/main.tf
index 2fa9c04..0df8b60 100644
--- a/main.tf
+++ b/main.tf
@@ -57,9 +57,8 @@ data "aws_ami" "image" {
   }
 }
 
-variable "your_ip" {
-  type = string
-  description = "Your global IP for SSH access"
+data "http" "myip" {
+  url = "http://ipv4.icanhazip.com"
 }
 
 resource "aws_security_group" "ssh" {
@@ -81,7 +80,7 @@ resource "aws_security_group_rule" "ssh" {
   to_port           = 22
   from_port         = 22
   protocol          = "tcp"
-  cidr_blocks       = [ "${var.your_ip}/32"]
+  cidr_blocks       = [ "${chomp(data.http.myip.body)}/32" ]
   security_group_id = aws_security_group.ssh.id
 }