diff --git a/examples/postgresql-public-iam/main.tf b/examples/postgresql-public-iam/main.tf
index b1d35982..d690407f 100644
--- a/examples/postgresql-public-iam/main.tf
+++ b/examples/postgresql-public-iam/main.tf
@@ -23,7 +23,7 @@ module "postgresql-db" {
   project_id           = var.project_id
   zone                 = "us-central1-c"
   region               = "us-central1"
-  tier                 = "db-f1-micro"
+  tier                 = "db-custom-2-13312"
 
   deletion_protection = false
 
diff --git a/examples/postgresql-public/main.tf b/examples/postgresql-public/main.tf
index b0c5a78f..38a8e889 100644
--- a/examples/postgresql-public/main.tf
+++ b/examples/postgresql-public/main.tf
@@ -23,7 +23,7 @@ module "postgresql-db" {
   project_id           = var.project_id
   zone                 = "us-central1-c"
   region               = "us-central1"
-  tier                 = "db-f1-micro"
+  tier                 = "db-custom-2-13312"
 
   deletion_protection = false
 
diff --git a/modules/mysql/main.tf b/modules/mysql/main.tf
index 3731886a..c7b60ed9 100644
--- a/modules/mysql/main.tf
+++ b/modules/mysql/main.tf
@@ -171,24 +171,32 @@ resource "random_id" "additional_passwords" {
 }
 
 resource "google_sql_user" "default" {
-  count      = var.enable_default_user ? 1 : 0
-  name       = var.user_name
-  project    = var.project_id
-  instance   = google_sql_database_instance.default.name
-  host       = var.user_host
-  password   = var.user_password == "" ? random_id.user-password.hex : var.user_password
-  depends_on = [null_resource.module_depends_on, google_sql_database_instance.default]
+  count    = var.enable_default_user ? 1 : 0
+  name     = var.user_name
+  project  = var.project_id
+  instance = google_sql_database_instance.default.name
+  host     = var.user_host
+  password = var.user_password == "" ? random_id.user-password.hex : var.user_password
+  depends_on = [
+    null_resource.module_depends_on,
+    google_sql_database_instance.default,
+    google_sql_database_instance.replicas,
+  ]
 }
 
 resource "google_sql_user" "additional_users" {
-  for_each   = local.users
-  project    = var.project_id
-  name       = each.value.name
-  password   = lookup(each.value, "password", random_id.user-password.hex)
-  host       = lookup(each.value, "host", var.user_host)
-  instance   = google_sql_database_instance.default.name
-  type       = lookup(each.value, "type", "BUILT_IN")
-  depends_on = [null_resource.module_depends_on, google_sql_database_instance.default]
+  for_each = local.users
+  project  = var.project_id
+  name     = each.value.name
+  password = lookup(each.value, "password", random_id.user-password.hex)
+  host     = lookup(each.value, "host", var.user_host)
+  instance = google_sql_database_instance.default.name
+  type     = lookup(each.value, "type", "BUILT_IN")
+  depends_on = [
+    null_resource.module_depends_on,
+    google_sql_database_instance.default,
+    google_sql_database_instance.replicas,
+  ]
 }
 
 resource "null_resource" "module_depends_on" {
diff --git a/modules/postgresql/main.tf b/modules/postgresql/main.tf
index e9ff41dc..52f28277 100644
--- a/modules/postgresql/main.tf
+++ b/modules/postgresql/main.tf
@@ -182,21 +182,29 @@ resource "random_id" "additional_passwords" {
 }
 
 resource "google_sql_user" "default" {
-  count      = var.enable_default_user ? 1 : 0
-  name       = var.user_name
-  project    = var.project_id
-  instance   = google_sql_database_instance.default.name
-  password   = var.user_password == "" ? random_id.user-password.hex : var.user_password
-  depends_on = [null_resource.module_depends_on, google_sql_database_instance.default]
+  count    = var.enable_default_user ? 1 : 0
+  name     = var.user_name
+  project  = var.project_id
+  instance = google_sql_database_instance.default.name
+  password = var.user_password == "" ? random_id.user-password.hex : var.user_password
+  depends_on = [
+    null_resource.module_depends_on,
+    google_sql_database_instance.default,
+    google_sql_database_instance.replicas,
+  ]
 }
 
 resource "google_sql_user" "additional_users" {
-  for_each   = local.users
-  project    = var.project_id
-  name       = each.value.name
-  password   = coalesce(each.value["password"], random_id.additional_passwords[each.value.name].hex)
-  instance   = google_sql_database_instance.default.name
-  depends_on = [null_resource.module_depends_on, google_sql_database_instance.default]
+  for_each = local.users
+  project  = var.project_id
+  name     = each.value.name
+  password = coalesce(each.value["password"], random_id.additional_passwords[each.value.name].hex)
+  instance = google_sql_database_instance.default.name
+  depends_on = [
+    null_resource.module_depends_on,
+    google_sql_database_instance.default,
+    google_sql_database_instance.replicas,
+  ]
 }
 
 resource "google_project_iam_member" "iam_binding" {
diff --git a/test/integration/postgresql-public-iam/controls/pg.rb b/test/integration/postgresql-public-iam/controls/pg.rb
index a55a6ea2..4f448a20 100644
--- a/test/integration/postgresql-public-iam/controls/pg.rb
+++ b/test/integration/postgresql-public-iam/controls/pg.rb
@@ -16,7 +16,7 @@
 basename   = attribute('name')
 db_version = "POSTGRES_9_6"
 region = "us-central1"
-tier = "db-f1-micro"
+tier = "db-custom-2-13312"
 public_ip_address = attribute('public_ip_address')
 
 activation_policy = "ALWAYS"
diff --git a/test/integration/postgresql-public/controls/pg.rb b/test/integration/postgresql-public/controls/pg.rb
index 9f132740..62bcd670 100644
--- a/test/integration/postgresql-public/controls/pg.rb
+++ b/test/integration/postgresql-public/controls/pg.rb
@@ -16,7 +16,7 @@
 basename   = attribute('name')
 db_version = "POSTGRES_9_6"
 region = "us-central1"
-tier = "db-f1-micro"
+tier = "db-custom-2-13312"
 public_ip_address = attribute('public_ip_address')
 
 activation_policy = "ALWAYS"