diff --git a/pkg/apis/trainer/v1alpha1/trainjob_types.go b/pkg/apis/trainer/v1alpha1/trainjob_types.go
index 86e378c7e3..07ec9a2d7b 100644
--- a/pkg/apis/trainer/v1alpha1/trainjob_types.go
+++ b/pkg/apis/trainer/v1alpha1/trainjob_types.go
@@ -194,6 +194,8 @@ type Initializer struct {
 // which contains this label: `trainer.kubeflow.org/trainjob-ancestor-step: dataset-initializer`
 type DatasetInitializer struct {
 	// storageUri is the URI for the dataset provider.
+	// Should be a valid URI format (e.g., s3://bucket/path, gs://bucket/path, /local/path)
+    // +kubebuilder:validation:Pattern=`^([A-Za-z][A-Za-z0-9+.-]*://.+|/.*)$`
 	// +kubebuilder:validation:MaxLength=2048
 	// +optional
 	StorageUri *string `json:"storageUri,omitempty"`
@@ -340,6 +342,7 @@ type JobSetSpecPatch struct {
 type ReplicatedJobPatch struct {
 	// name is the name of the replicated job to patch.
 	// +kubebuilder:validation:MinLength=1
+	// +kubebuilder:validation:Pattern=`^[a-z0-9]([-a-z0-9]*[a-z0-9])?$`
 	// +kubebuilder:validation:MaxLength=253
 	// +required
 	Name string `json:"name,omitempty"`