diff --git a/internal/postgres/tag.go b/internal/postgres/tag.go
index bc7bef6..e22426b 100644
--- a/internal/postgres/tag.go
+++ b/internal/postgres/tag.go
@@ -3,6 +3,7 @@ package postgres
 import (
 	"context"
 	"errors"
+
 	"gorm.io/gorm/clause"
 
 	otterError "git.dragse.it/anthrove/otter-space-sdk/v2/pkg/error"
@@ -220,7 +221,10 @@ func CreateTagAliasInBatch(ctx context.Context, db *gorm.DB, tagAliases []models
 		return &otterError.EntityValidationFailed{Reason: "batch size cannot be zero"}
 	}
 
-	result := db.WithContext(ctx).CreateInBatches(tagAliases, batchSize)
+	result := db.WithContext(ctx).Clauses(clause.OnConflict{
+		Columns:   []clause.Column{{Name: "name"}},
+		DoNothing: true,
+	}).CreateInBatches(tagAliases, batchSize)
 	if result.Error != nil {
 		if errors.Is(result.Error, gorm.ErrDuplicatedKey) {
 			return &otterError.EntityAlreadyExists{}