diff --git a/products/tests.py b/products/tests.py
index e9944bf..13471ec 100644
--- a/products/tests.py
+++ b/products/tests.py
@@ -793,7 +793,7 @@ class ProductSearchTest(TestCase):
         ]
 
         q = quote("zapatos rojos")
-        url = f"{self.endpoint}?q={q}&category=ropa&category=nueva"
+        url = f"{self.endpoint}?q={q}&category[]=ropa&category[]=nueva"
         # send in request
         response = self.client.get(url)
         # check response
diff --git a/products/utils.py b/products/utils.py
index eba2d0b..49d7edc 100644
--- a/products/utils.py
+++ b/products/utils.py
@@ -10,7 +10,7 @@ from django.utils import timezone
 
 import requests
 
-from products.models import Product
+from products.models import Product, CategoryTag
 from companies.models import Company
 from history.models import HistorySync
 from PIL import Image
@@ -144,7 +144,15 @@ def ranked_product_search(keyword, shipping_cost=None, discount=None, categories
 
     # filter by category
     if categories is not None:
-        products_qs = products_qs.filter(category__name__in=categories)
+        # products_qs = products_qs.filter(category__name__in=categories)
+        descendants = []
+        for entry in categories:
+            cat = CategoryTag.objects.filter(label__iexact=entry).first()
+            # append category tag, and children
+            descendants.append(cat)
+            descendants.extend(cat.children.all())
+
+        products_qs = products_qs.filter(category__in=descendants)
 
     # filter by tags
     if tags is not None:
diff --git a/products/views.py b/products/views.py
index 33e5266..e391480 100644
--- a/products/views.py
+++ b/products/views.py
@@ -163,7 +163,7 @@ def product_search(request):
         else:
                 discount = None
     # category = request.GET.get('category', None)
-    categories = request.query_params.getlist('category') or None
+    categories = request.query_params.getlist('category[]') or None
     tags = request.GET.get('tags', None)
     price_min = request.GET.get('price_min', None)
     price_max = request.GET.get('price_max', None)
@@ -183,8 +183,14 @@ def product_search(request):
             products_qs = Product.objects.filter(active=True)
             # filter by category
             if categories is not None:
-                products_qs = products_qs.filter(category__name__in=categories)
+                descendants = []
+                for entry in categories:
+                    cat = CategoryTag.objects.filter(label__iexact=entry).first()
+                    # append category tag, and children
+                    descendants.append(cat)
+                    descendants.extend(cat.children.all())
 
+                products_qs = products_qs.filter(category__in=descendants)
             # filter by tags
             if tags is not None:
                 products_qs = products_qs.filter(tags__name__icontains=tags)