diff --git a/core/serializers/detail.py b/core/serializers/detail.py
index fb8baaca..51a15e17 100644
--- a/core/serializers/detail.py
+++ b/core/serializers/detail.py
@@ -76,16 +76,10 @@ class CategoryDetailSerializer(ModelSerializer):
     def get_filterable_attributes(self, obj: Category) -> list[dict]:
         cache_key = f"{obj.uuid}_filterable_results"
         filterable_results = cache.get(cache_key)
-        if filterable_results:
+        if filterable_results is not None:
             return filterable_results
 
-        request = self.context.get("request")
-        user = getattr(request, "user", AnonymousUser())
-        attrs_qs = (
-            obj.attributes.filter(is_filterable=True)
-            if user.has_perm("view_attribute")
-            else obj.attributes.filter(is_active=True, is_filterable=True)
-        )
+        attrs_qs = obj.attributes.filter(is_active=True, is_filterable=True)
         attributes = list(attrs_qs)
 
         attr_ids = [a.id for a in attributes]
@@ -116,8 +110,7 @@ class CategoryDetailSerializer(ModelSerializer):
                 }
             )
 
-        if not user.has_perm("view_attribute"):
-            cache.set(cache_key, filterable_results, 86400)
+        cache.set(cache_key, filterable_results, 3600)
 
         return filterable_results