diff --git a/terraform/modules/network/main.tf b/terraform/modules/network/main.tf
index 9ccb5b5..753cedb 100644
--- a/terraform/modules/network/main.tf
+++ b/terraform/modules/network/main.tf
@@ -58,7 +58,7 @@ resource "google_compute_firewall" "ssh" {
 }
 
 resource "google_compute_firewall" "front_back" {
-  name    = "front_back"
+  name    = "front-back"
   network = google_compute_network.vpc.id
 
   allow {
@@ -71,7 +71,7 @@ resource "google_compute_firewall" "front_back" {
 }
 
 resource "google_compute_firewall" "back_data" {
-  name    = "back_data"
+  name    = "back-data"
   network = google_compute_network.vpc.id
 
   allow {