diff --git a/terraform/environments/dev/.terraform.lock.hcl b/terraform/environments/dev/.terraform.lock.hcl
new file mode 100644
index 0000000..3a67db2
--- /dev/null
+++ b/terraform/environments/dev/.terraform.lock.hcl
@@ -0,0 +1,22 @@
+# This file is maintained automatically by "terraform init".
+# Manual edits may be lost in future updates.
+
+provider "registry.terraform.io/hashicorp/google" {
+  version     = "6.12.0"
+  constraints = "~> 6.12.0"
+  hashes = [
+    "h1:rvZHMkoxkHrBYQXb/waoZiD2oo3FS1AF8HoWHlb6SN8=",
+    "zh:14701aa307a832d99f567b8056a4c5e4ee5a403d984c98f024deee7507a3f29c",
+    "zh:344eca00ffb2643c2fa7f52f069b659d50bb4c9369df4cad96ea0fadb54282c8",
+    "zh:5fb57c0acfd4d30a39941900040d5518a909d8c975af0c4366a7bfd0d0bb09a8",
+    "zh:617a77048a5b9aa568e8bc706cc84307a237b2dd0e49709028b283f8bbe42475",
+    "zh:677837a05fefe0342cf4d4bdc494e8fd4d62331cac947820e73df37e8f512688",
+    "zh:7b79f6e02474eef4a1480fc6589afb63ed16b25bf019b6056f9838e2845e2ef8",
+    "zh:7d891fceb5b15e81240d829f42e1a36e4c812bfc1abe7856756e59101932205f",
+    "zh:97f1e0ac799faf382426e070e888fac36b0867597b460dc95b0e7f657de21ba9",
+    "zh:9855f2f2f5919ff6a6a2c982439c910d28c8978ad18cd8f549a5d1ba9b4dc4c3",
+    "zh:ac551367180eb396af2a50244e80243d333d600a76002e29935262d76a02290b",
+    "zh:c354f34e6579933d21a98ce7f31f4ef8aeaceb04cfaedaff6d3f3c0be56b2c79",
+    "zh:f569b65999264a9416862bca5cd2a6177d94ccb0424f3a4ef424428912b9cb3c",
+  ]
+}
diff --git a/terraform/environments/dev/variables.tf b/terraform/environments/dev/variables.tf
index 6fcdd41..acbba10 100644
--- a/terraform/environments/dev/variables.tf
+++ b/terraform/environments/dev/variables.tf
@@ -30,12 +30,12 @@ variable "region"{
 
 variable "project_id"{
   description = "id of the project"
-  type = "string"
+  type = string
   default = "10.0.6.0/24"
 }
 
 variable "ssh_source_ranges"{
   description = "range of sources"
-  type = "string"
+  type = string
   default = "10.0.7.0/24"
 }
diff --git a/terraform/modules/network/main.tf b/terraform/modules/network/main.tf
index 18be07c..6c83cfd 100644
--- a/terraform/modules/network/main.tf
+++ b/terraform/modules/network/main.tf
@@ -8,7 +8,7 @@ resource "frontend" "subnet" {
   network = google_compute_network.vpc.id
   ip_cidr_range = "10.0.1.0/24"
   region = "europe-west9"
-  provider = "registry.terraform.io/hashicorp/frontend"
+  provider = google
 
   allow {
     protocol = ssh
@@ -24,7 +24,7 @@ resource "backend" "subnet" {
   network = google_compute_network.vpc.id
   ip_cidr_range = "10.0.2.0/24"
   region = "europe-west9"
-  provider = "registry.terraform.io/hashicorp/backend"
+  provider = google
 
   allow {
     protocol = ssh
@@ -41,5 +41,5 @@ resource "database" "subnet" {
   network = google_compute_network.vpc.id
   ip_cidr_range = "10.0.3.0/24"
   region = "europe-west9"
-  provider = "registry.terraform.io/hashicorp/database"
+  provider = google
 }