diff --git a/.changelog/11469.txt b/.changelog/11469.txt
new file mode 100644
index 00000000000..2ddbc19eec9
--- /dev/null
+++ b/.changelog/11469.txt
@@ -0,0 +1,3 @@
+```release-note:none
+fixed tests for `google_scc_management_organization_event_threat_detection_custom_module` resource
+```
\ No newline at end of file
diff --git a/google/services/securitycentermanagement/resource_scc_management_folder_security_health_analytics_custom_module_test.go b/google/services/securitycentermanagement/resource_scc_management_folder_security_health_analytics_custom_module_test.go
index 2c76ab24f9b..40edcec87f9 100644
--- a/google/services/securitycentermanagement/resource_scc_management_folder_security_health_analytics_custom_module_test.go
+++ b/google/services/securitycentermanagement/resource_scc_management_folder_security_health_analytics_custom_module_test.go
@@ -18,8 +18,7 @@ import (
 
 // Custom Module tests cannot be run in parallel without running into 409 Conflict reponses.
 // Run them as individual steps of an update test instead.
-func TestAccSecurityCenterManagementFolderSecurityHealthAnalyticsCustomModule(t *testing.T) {
-	t.Parallel()
+func testAccSecurityCenterManagementFolderSecurityHealthAnalyticsCustomModule(t *testing.T) {
 
 	context := map[string]interface{}{
 		"org_id":        envvar.GetTestOrgFromEnv(t),
diff --git a/google/services/securitycentermanagement/resource_scc_management_organization_event_threat_detection_custom_module_test.go b/google/services/securitycentermanagement/resource_scc_management_organization_event_threat_detection_custom_module_test.go
index f31b5638f11..65b9d9371a5 100644
--- a/google/services/securitycentermanagement/resource_scc_management_organization_event_threat_detection_custom_module_test.go
+++ b/google/services/securitycentermanagement/resource_scc_management_organization_event_threat_detection_custom_module_test.go
@@ -16,8 +16,28 @@ import (
 	transport_tpg "github.com/hashicorp/terraform-provider-google/google/transport"
 )
 
-func TestAccSecurityCenterManagementOrganizationEventThreatDetectionCustomModule(t *testing.T) {
-	t.Parallel()
+func TestAccSecurityCenterManagement(t *testing.T) {
+	testCases := map[string]func(t *testing.T){
+		"orgSecurity":     testAccSecurityCenterManagementOrganizationSecurityHealthAnalyticsCustomModule,
+		"folderSecurity":  testAccSecurityCenterManagementFolderSecurityHealthAnalyticsCustomModule,
+		"projectSecurity": testAccSecurityCenterManagementProjectSecurityHealthAnalyticsCustomModule,
+		"organization":    testAccSecurityCenterManagementOrganizationEventThreatDetectionCustomModule,
+	}
+
+	for name, tc := range testCases {
+		// shadow the tc variable into scope so that when
+		// the loop continues, if t.Run hasn't executed tc(t)
+		// yet, we don't have a race condition
+		// see https://github.com/golang/go/wiki/CommonMistakes#using-goroutines-on-loop-iterator-variables
+		tc := tc
+		t.Run(name, func(t *testing.T) {
+			tc(t)
+		})
+	}
+}
+
+func testAccSecurityCenterManagementOrganizationEventThreatDetectionCustomModule(t *testing.T) {
+	// t.Parallel()
 
 	context := map[string]interface{}{
 		"org_id":        envvar.GetTestOrgFromEnv(t),
diff --git a/google/services/securitycentermanagement/resource_scc_management_organization_project_security_health_analytics_custom_module_test.go b/google/services/securitycentermanagement/resource_scc_management_organization_project_security_health_analytics_custom_module_test.go
index 98d156bbd6d..54bc5135d0f 100644
--- a/google/services/securitycentermanagement/resource_scc_management_organization_project_security_health_analytics_custom_module_test.go
+++ b/google/services/securitycentermanagement/resource_scc_management_organization_project_security_health_analytics_custom_module_test.go
@@ -17,8 +17,7 @@ import (
 
 // Custom Module tests cannot be run in parallel without running into 409 Conflict reponses.
 // Run them as individual steps of an update test instead.
-func TestAccSecurityCenterManagementProjectSecurityHealthAnalyticsCustomModule(t *testing.T) {
-	t.Parallel()
+func testAccSecurityCenterManagementProjectSecurityHealthAnalyticsCustomModule(t *testing.T) {
 
 	context := map[string]interface{}{
 		"random_suffix": acctest.RandString(t, 10),
diff --git a/google/services/securitycentermanagement/resource_scc_management_organization_security_health_analytics_custom_module_test.go b/google/services/securitycentermanagement/resource_scc_management_organization_security_health_analytics_custom_module_test.go
index 607999b19ba..c74ac4d04d2 100644
--- a/google/services/securitycentermanagement/resource_scc_management_organization_security_health_analytics_custom_module_test.go
+++ b/google/services/securitycentermanagement/resource_scc_management_organization_security_health_analytics_custom_module_test.go
@@ -18,8 +18,7 @@ import (
 
 // Custom Module tests cannot be run in parallel without running into 409 Conflict reponses.
 // Run them as individual steps of an update test instead.
-func TestAccSecurityCenterManagementOrganizationSecurityHealthAnalyticsCustomModule(t *testing.T) {
-	t.Parallel()
+func testAccSecurityCenterManagementOrganizationSecurityHealthAnalyticsCustomModule(t *testing.T) {
 
 	context := map[string]interface{}{
 		"org_id":        envvar.GetTestOrgFromEnv(t),