diff --git a/src/product/entities/product-category.entity.ts b/src/product/entities/product-category.entity.ts
index 3da2720..873538f 100644
--- a/src/product/entities/product-category.entity.ts
+++ b/src/product/entities/product-category.entity.ts
@@ -19,7 +19,9 @@ export class ProductCategories extends BaseModel {
   @Column()
   name: string;
 
-  @Column()
+  @Column({
+    nullable: true,
+  })
   code: string;
 
   @OneToMany(
diff --git a/src/product/entities/product-sub-category.entity.ts b/src/product/entities/product-sub-category.entity.ts
index a5b1aad..f60eec2 100644
--- a/src/product/entities/product-sub-category.entity.ts
+++ b/src/product/entities/product-sub-category.entity.ts
@@ -17,7 +17,9 @@ export class ProductSubCategories extends BaseModel {
   @Column()
   name: string;
 
-  @Column()
+  @Column({
+    nullable: true,
+  })
   code: string;
 
   @ManyToOne(() => ProductCategories, (categories) => categories.sub_categories)