diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0772c4db8..d5cd83392 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,16 @@ and includes an additional section for migration notes.
 
 ### Security
 
+## [9.0.3] 2024-01-30
+
+### Migration Notes
+
+If you are migrating from ORCA v8.x.x to this version, see the migration notes under v9.0.0.
+
+### Fixed
+
+- *ORCA-823* Fixed security group errors of incorrect referenced resources in `modules/security-groups/main.tf` and `modules/security-groups/outputs.tf`. This fixes the deployment errors seen in ORCA v9.0.2.
+
 ## [9.0.2] 2024-01-26
 
 ### Migration Notes
diff --git a/modules/security_groups/main.tf b/modules/security_groups/main.tf
index 5ce78c283..9deabefd6 100644
--- a/modules/security_groups/main.tf
+++ b/modules/security_groups/main.tf
@@ -38,6 +38,6 @@ resource "aws_security_group_rule" "rds_allow_lambda_access" {
   to_port                  = 5432
   protocol                 = "TCP"
   description              = "Allows ${var.prefix} Orca lambda access."
-  source_security_group_id = aws_security_group.vpc-postgres-ingress-all-egress.id
+  source_security_group_id = aws_security_group.vpc_postgres_ingress_all_egress.id
   security_group_id        = var.rds_security_group_id
 }
diff --git a/modules/security_groups/output.tf b/modules/security_groups/output.tf
index 914606ff1..a7a1196a1 100644
--- a/modules/security_groups/output.tf
+++ b/modules/security_groups/output.tf
@@ -1,4 +1,4 @@
 output "vpc_postgres_ingress_all_egress_id" {
-  value       = aws_security_group.vpc-postgres-ingress-all-egress.id
+  value       = aws_security_group.vpc_postgres_ingress_all_egress.id
   description = "PostgreSQL security group id"
-}
\ No newline at end of file
+}