diff --git a/models/migration.js b/models/migration.js
index 72f555d..196a33f 100644
--- a/models/migration.js
+++ b/models/migration.js
@@ -5,7 +5,6 @@ const migrationSchema = new mongoose.Schema({
     type: String,
     required: true,
     unique: true,
-    index: true
   },
   batch: {
     type: Number,
@@ -21,7 +20,7 @@ const migrationSchema = new mongoose.Schema({
 });
 
 // Index để tìm kiếm nhanh
-migrationSchema.index({ name: 1 });
+// migrationSchema.index({ name: 1 });
 migrationSchema.index({ batch: -1 });
 
 module.exports = mongoose.model('Migration', migrationSchema);