diff --git a/internal/service/opensearch/opensearch_user_test.go b/internal/service/opensearch/opensearch_user_test.go
index a1715bc36..64e31721b 100644
--- a/internal/service/opensearch/opensearch_user_test.go
+++ b/internal/service/opensearch/opensearch_user_test.go
@@ -14,6 +14,9 @@ import (
 	"github.com/hashicorp/terraform-plugin-sdk/v2/terraform"
 )
 
+// opensearchTestPassword is the password used for the OpenSearch tests.
+const opensearchTestPassword = "ThisIsATest123^=^"
+
 func TestAccAivenOpensearchUser_basic(t *testing.T) {
 	resourceName := "aiven_opensearch_user.foo"
 	rName := acctest.RandStringFromCharSet(10, acctest.CharSetAlphaNum)
@@ -30,7 +33,7 @@ func TestAccAivenOpensearchUser_basic(t *testing.T) {
 					resource.TestCheckResourceAttr(resourceName, "service_name", fmt.Sprintf("test-acc-sr-%s", rName)),
 					resource.TestCheckResourceAttr(resourceName, "project", os.Getenv("AIVEN_PROJECT_NAME")),
 					resource.TestCheckResourceAttr(resourceName, "username", fmt.Sprintf("user-%s", rName)),
-					resource.TestCheckResourceAttr(resourceName, "password", "Test$1234"),
+					resource.TestCheckResourceAttr(resourceName, "password", opensearchTestPassword),
 				),
 			},
 		},
@@ -69,14 +72,14 @@ func testAccCheckAivenOpensearchUserResourceDestroy(s *terraform.State) error {
 func testAccOpensearchUserResource(name string) string {
 	return fmt.Sprintf(`
 data "aiven_project" "foo" {
-  project = "%s"
+  project = "%[1]s"
 }
 
 resource "aiven_opensearch" "bar" {
   project                 = data.aiven_project.foo.project
   cloud_name              = "google-europe-west1"
   plan                    = "startup-4"
-  service_name            = "test-acc-sr-%s"
+  service_name            = "test-acc-sr-%[2]s"
   maintenance_window_dow  = "monday"
   maintenance_window_time = "10:00:00"
 }
@@ -84,13 +87,13 @@ resource "aiven_opensearch" "bar" {
 resource "aiven_opensearch_user" "foo" {
   service_name = aiven_opensearch.bar.service_name
   project      = data.aiven_project.foo.project
-  username     = "user-%s"
-  password     = "Test$1234"
+  username     = "user-%[2]s"
+  password     = "%[3]s"
 }
 
 data "aiven_opensearch_user" "user" {
   service_name = aiven_opensearch_user.foo.service_name
   project      = aiven_opensearch_user.foo.project
   username     = aiven_opensearch_user.foo.username
-}`, os.Getenv("AIVEN_PROJECT_NAME"), name, name)
+}`, os.Getenv("AIVEN_PROJECT_NAME"), name, opensearchTestPassword)
 }