diff --git a/alloydb_backup_basic_test/main.tf b/alloydb_backup_basic_test/main.tf
index 58d9c7c1..e58d92e1 100644
--- a/alloydb_backup_basic_test/main.tf
+++ b/alloydb_backup_basic_test/main.tf
@@ -13,6 +13,10 @@ resource "google_alloydb_cluster" "default" {
     network = data.google_compute_network.default.id
   }
 
+  initial_user {
+    password = "alloydb-cluster-${local.name_suffix}"
+  }
+
   deletion_protection = false
 }
 
diff --git a/alloydb_backup_full_test/main.tf b/alloydb_backup_full_test/main.tf
index af1c7b48..9d60ac2c 100644
--- a/alloydb_backup_full_test/main.tf
+++ b/alloydb_backup_full_test/main.tf
@@ -18,6 +18,10 @@ resource "google_alloydb_cluster" "default" {
     network = data.google_compute_network.default.id
   }
 
+  initial_user {
+    password = "alloydb-cluster-${local.name_suffix}"
+  }
+
   deletion_protection = false
 }
 
diff --git a/alloydb_cluster_basic/main.tf b/alloydb_cluster_basic/main.tf
index b724b7ea..8005d021 100644
--- a/alloydb_cluster_basic/main.tf
+++ b/alloydb_cluster_basic/main.tf
@@ -5,6 +5,10 @@ resource "google_alloydb_cluster" "default" {
     network = google_compute_network.default.id
   }
 
+  initial_user {
+    password = "alloydb-cluster-${local.name_suffix}"
+  }
+
   deletion_protection = false
 }
 
diff --git a/alloydb_secondary_cluster_basic_test/main.tf b/alloydb_secondary_cluster_basic_test/main.tf
index f77c4c8f..93cda82c 100644
--- a/alloydb_secondary_cluster_basic_test/main.tf
+++ b/alloydb_secondary_cluster_basic_test/main.tf
@@ -5,6 +5,10 @@ resource "google_alloydb_cluster" "primary" {
     network = data.google_compute_network.default.id
   }
 
+  initial_user {
+    password = "alloydb-primary-cluster-${local.name_suffix}"
+  }
+
   deletion_protection = false
 }
 
diff --git a/alloydb_secondary_instance_basic_test/main.tf b/alloydb_secondary_instance_basic_test/main.tf
index 01b35f5d..368cb2a2 100644
--- a/alloydb_secondary_instance_basic_test/main.tf
+++ b/alloydb_secondary_instance_basic_test/main.tf
@@ -5,6 +5,10 @@ resource "google_alloydb_cluster" "primary" {
     network = data.google_compute_network.default.id
   }
 
+  initial_user {
+    password = "alloydb-primary-cluster-${local.name_suffix}"
+  }
+
   deletion_protection = false
 }