diff --git a/backend/src/apiserver/resource/resource_manager.go b/backend/src/apiserver/resource/resource_manager.go
index 312453a9659..a50a989b7c8 100644
--- a/backend/src/apiserver/resource/resource_manager.go
+++ b/backend/src/apiserver/resource/resource_manager.go
@@ -1081,18 +1081,19 @@ func (r *ResourceManager) CreateJob(ctx context.Context, job *model.Job) (*model
 	for _, modelRef := range job.ResourceReferences {
 		modelRef.ResourceUUID = string(swf.UID)
 	}
-	// Get the service account
-	serviceAccount := ""
-	if swf.Spec.Workflow != nil {
-		execSpec, err := util.ScheduleSpecToExecutionSpec(util.ArgoWorkflow, swf.Spec.Workflow)
-		if err == nil {
-			serviceAccount = execSpec.ServiceAccount()
-		}
-	}
-	job.ServiceAccount = serviceAccount
 	if tmpl.GetTemplateType() == template.V1 {
+		// Get the service account
+		serviceAccount := ""
+		if swf.Spec.Workflow != nil {
+			execSpec, err := util.ScheduleSpecToExecutionSpec(util.ArgoWorkflow, swf.Spec.Workflow)
+			if err == nil {
+				serviceAccount = execSpec.ServiceAccount()
+			}
+		}
+		job.ServiceAccount = serviceAccount
 		job.PipelineSpec.WorkflowSpecManifest = manifest
 	} else {
+		job.ServiceAccount = newScheduledWorkflow.Spec.ServiceAccount
 		job.PipelineSpec.PipelineSpecManifest = manifest
 	}
 	return r.jobStore.CreateJob(job)
diff --git a/backend/src/apiserver/template/template_test.go b/backend/src/apiserver/template/template_test.go
index 98e7482bf46..27c9817cb60 100644
--- a/backend/src/apiserver/template/template_test.go
+++ b/backend/src/apiserver/template/template_test.go
@@ -217,9 +217,10 @@ func TestScheduledWorkflow(t *testing.T) {
 				Parameters: []scheduledworkflow.Parameter{{Name: "y", Value: "\"world\""}},
 				Spec:       "",
 			},
-			PipelineId:   "1",
-			PipelineName: "pipeline name",
-			NoCatchup:    util.BoolPointer(true),
+			PipelineId:     "1",
+			PipelineName:   "pipeline name",
+			NoCatchup:      util.BoolPointer(true),
+			ServiceAccount: "pipeline-runner",
 		},
 	}
 
diff --git a/backend/src/apiserver/template/v2_template.go b/backend/src/apiserver/template/v2_template.go
index d14ddffdaeb..1055bcdf8a9 100644
--- a/backend/src/apiserver/template/v2_template.go
+++ b/backend/src/apiserver/template/v2_template.go
@@ -97,7 +97,9 @@ func (t *V2Spec) ScheduledWorkflow(modelJob *model.Job) (*scheduledworkflow.Sche
 	if modelJob.Namespace != "" {
 		executionSpec.SetExecutionNamespace(modelJob.Namespace)
 	}
-	setDefaultServiceAccount(executionSpec, modelJob.ServiceAccount)
+	if executionSpec.ServiceAccount() == "" {
+		setDefaultServiceAccount(executionSpec, modelJob.ServiceAccount)
+	}
 	// Disable istio sidecar injection if not specified
 	executionSpec.SetAnnotationsToAllTemplatesIfKeyNotExist(util.AnnotationKeyIstioSidecarInject, util.AnnotationValueIstioSidecarInjectDisabled)
 	swfGeneratedName, err := toSWFCRDResourceGeneratedName(modelJob.K8SName)
@@ -132,7 +134,7 @@ func (t *V2Spec) ScheduledWorkflow(modelJob *model.Job) (*scheduledworkflow.Sche
 			PipelineId:        modelJob.PipelineId,
 			PipelineName:      modelJob.PipelineName,
 			PipelineVersionId: modelJob.PipelineVersionId,
-			ServiceAccount:    modelJob.ServiceAccount,
+			ServiceAccount:    executionSpec.ServiceAccount(),
 		},
 	}
 	return scheduledWorkflow, nil