diff --git a/main.tf b/main.tf
index ed9a7da..14325e9 100644
--- a/main.tf
+++ b/main.tf
@@ -132,6 +132,7 @@ resource "aws_security_group_rule" "allow_all_egress" {
   to_port           = 0
   protocol          = "-1"
   cidr_blocks       = ["0.0.0.0/0"]
+  ipv6_cidr_blocks  = ["::/0"]
   security_group_id = aws_security_group.default.id
 }