diff --git a/terraform/environments/cdpt-chaps/database.tf b/terraform/environments/cdpt-chaps/database.tf
index c1d41bf0d50..de75b22636b 100644
--- a/terraform/environments/cdpt-chaps/database.tf
+++ b/terraform/environments/cdpt-chaps/database.tf
@@ -58,15 +58,6 @@ resource "aws_security_group" "db" {
   }
 }
 
-resource "aws_security_group_rule" "allow_ec2_to_rds" {
-  type              = "ingress"
-  from_port         = 1433
-  to_port           = 1433
-  protocol          = "tcp"
-  source_security_group_id = aws_security_group.cluster_ec2.id
-  security_group_id = aws_security_group.db.id
-}
-
 data "aws_secretsmanager_secret" "db_password" {
   name = aws_secretsmanager_secret.chaps_secret.name
 }