diff --git a/examples/bastion_group/versions.tf b/examples/bastion_group/versions.tf
index 3e73a738..d1218c9c 100644
--- a/examples/bastion_group/versions.tf
+++ b/examples/bastion_group/versions.tf
@@ -14,13 +14,15 @@
  * limitations under the License.
  */
 terraform {
-  required_version = ">=0.13"
+  required_version = ">= 0.13"
   required_providers {
     google = {
-      source = "hashicorp/google"
+      source  = "hashicorp/google"
+      version = "~> 4.0"
     }
     google-beta = {
-      source = "hashicorp/google-beta"
+      source  = "hashicorp/google-beta"
+      version = "~> 4.0"
     }
     random = {
       source = "hashicorp/random"
diff --git a/examples/iap_tunneling/main.tf b/examples/iap_tunneling/main.tf
index 7812ded8..631599e8 100644
--- a/examples/iap_tunneling/main.tf
+++ b/examples/iap_tunneling/main.tf
@@ -38,7 +38,7 @@ resource "google_service_account" "vm_sa" {
 # A testing VM to allow OS Login + IAP tunneling.
 module "instance_template" {
   source  = "terraform-google-modules/vm/google//modules/instance_template"
-  version = "1.1.0"
+  version = "~> 7.3"
 
   project_id   = var.project
   machine_type = "n1-standard-1"
diff --git a/examples/iap_tunneling/versions.tf b/examples/iap_tunneling/versions.tf
index 1ee2a52f..e4ca6d1b 100644
--- a/examples/iap_tunneling/versions.tf
+++ b/examples/iap_tunneling/versions.tf
@@ -14,10 +14,11 @@
  * limitations under the License.
  */
 terraform {
-  required_version = ">=0.13"
+  required_version = ">= 0.13"
   required_providers {
     google = {
-      source = "hashicorp/google"
+      source  = "hashicorp/google"
+      version = "~> 4.0"
     }
   }
 }
diff --git a/examples/simple_example/versions.tf b/examples/simple_example/versions.tf
index 3e73a738..d1218c9c 100644
--- a/examples/simple_example/versions.tf
+++ b/examples/simple_example/versions.tf
@@ -14,13 +14,15 @@
  * limitations under the License.
  */
 terraform {
-  required_version = ">=0.13"
+  required_version = ">= 0.13"
   required_providers {
     google = {
-      source = "hashicorp/google"
+      source  = "hashicorp/google"
+      version = "~> 4.0"
     }
     google-beta = {
-      source = "hashicorp/google-beta"
+      source  = "hashicorp/google-beta"
+      version = "~> 4.0"
     }
     random = {
       source = "hashicorp/random"
diff --git a/examples/two_service_example/versions.tf b/examples/two_service_example/versions.tf
index 3e73a738..d1218c9c 100644
--- a/examples/two_service_example/versions.tf
+++ b/examples/two_service_example/versions.tf
@@ -14,13 +14,15 @@
  * limitations under the License.
  */
 terraform {
-  required_version = ">=0.13"
+  required_version = ">= 0.13"
   required_providers {
     google = {
-      source = "hashicorp/google"
+      source  = "hashicorp/google"
+      version = "~> 4.0"
     }
     google-beta = {
-      source = "hashicorp/google-beta"
+      source  = "hashicorp/google-beta"
+      version = "~> 4.0"
     }
     random = {
       source = "hashicorp/random"
diff --git a/main.tf b/main.tf
index 089e7c67..eee959ff 100644
--- a/main.tf
+++ b/main.tf
@@ -44,7 +44,7 @@ resource "google_service_account" "bastion_host" {
 
 module "instance_template" {
   source  = "terraform-google-modules/vm/google//modules/instance_template"
-  version = "~> 6.0"
+  version = "~> 7.3"
 
   name_prefix        = var.name_prefix
   project_id         = var.project
diff --git a/modules/bastion-group/main.tf b/modules/bastion-group/main.tf
index 578ae77d..0d5e00cf 100644
--- a/modules/bastion-group/main.tf
+++ b/modules/bastion-group/main.tf
@@ -41,7 +41,7 @@ module "iap_bastion" {
 
 module "mig" {
   source  = "terraform-google-modules/vm/google//modules/mig"
-  version = "~> 6.0"
+  version = "~> 7.3"
 
   project_id        = var.project
   region            = var.region
diff --git a/modules/bastion-group/versions.tf b/modules/bastion-group/versions.tf
index 82fbbabf..ac3d07c6 100644
--- a/modules/bastion-group/versions.tf
+++ b/modules/bastion-group/versions.tf
@@ -17,10 +17,12 @@ terraform {
   required_version = ">=0.13"
   required_providers {
     google = {
-      source = "hashicorp/google"
+      source  = "hashicorp/google"
+      version = ">= 3.53, < 5.0"
     }
     google-beta = {
-      source = "hashicorp/google-beta"
+      source  = "hashicorp/google-beta"
+      version = ">= 3.53, < 5.0"
     }
     random = {
       source = "hashicorp/random"
diff --git a/modules/iap-tunneling/versions.tf b/modules/iap-tunneling/versions.tf
index 29812dae..4aebb1fb 100644
--- a/modules/iap-tunneling/versions.tf
+++ b/modules/iap-tunneling/versions.tf
@@ -17,7 +17,8 @@ terraform {
   required_version = ">=0.13"
   required_providers {
     google = {
-      source = "hashicorp/google"
+      source  = "hashicorp/google"
+      version = ">= 3.53, < 5.0"
     }
   }
   provider_meta "google" {
diff --git a/versions.tf b/versions.tf
index e56cc88b..e5786ab3 100644
--- a/versions.tf
+++ b/versions.tf
@@ -17,7 +17,8 @@ terraform {
   required_version = ">=0.13"
   required_providers {
     google = {
-      source = "hashicorp/google"
+      source  = "hashicorp/google"
+      version = ">= 3.53, < 5.0"
     }
     random = {
       source = "hashicorp/random"