diff --git a/Gemfile b/Gemfile
index f1b00e71..de4be286 100644
--- a/Gemfile
+++ b/Gemfile
@@ -51,7 +51,7 @@ gem 'ncbo_cron', git: 'https://github.com/ontoportal-lirmm/ncbo_cron.git', branc
 gem 'ncbo_ontology_recommender', git: 'https://github.com/ncbo/ncbo_ontology_recommender.git', branch: 'master'
 gem 'goo', github: 'ontoportal-lirmm/goo', branch: 'development'
 gem 'sparql-client', github: 'ontoportal-lirmm/sparql-client', branch: 'development'
-gem 'ontologies_linked_data', git: 'https://github.com/ontoportal-lirmm/ontologies_linked_data.git', branch: 'feature/add-portal-config-model'
+gem 'ontologies_linked_data', git: 'https://github.com/ontoportal-lirmm/ontologies_linked_data.git', branch: 'development'
 
 group :development do
   # bcrypt_pbkdf and ed35519 is required for capistrano deployments when using ed25519 keys; see https://github.com/miloserdow/capistrano-deploy/issues/42
diff --git a/Gemfile.lock b/Gemfile.lock
index 57397362..9c861a4a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,7 +57,7 @@ GIT
 
 GIT
   remote: https://github.com/ontoportal-lirmm/ontologies_linked_data.git
-  revision: 651d2f4226004c2311120e900a936101ee509865
+  revision: 25819bc9bff2313a9ac4fc717241d37051bcdf4f
   branch: development
   specs:
     ontologies_linked_data (0.0.1)
@@ -211,6 +211,9 @@ GEM
       multi_json (~> 1.11)
       os (>= 0.9, < 2.0)
       signet (>= 0.16, < 2.a)
+    grpc (1.65.2)
+      google-protobuf (>= 3.25, < 5.0)
+      googleapis-common-protos-types (~> 1.0)
     grpc (1.65.2-x86_64-linux)
       google-protobuf (>= 3.25, < 5.0)
       googleapis-common-protos-types (~> 1.0)
@@ -406,6 +409,7 @@ GEM
       hashdiff (>= 0.4.0, < 2.0.0)
 
 PLATFORMS
+  ruby
   x86_64-linux
 
 DEPENDENCIES
diff --git a/test/controllers/test_categories_controller.rb b/test/controllers/test_categories_controller.rb
index d7e07cd2..4cfa7a0b 100644
--- a/test/controllers/test_categories_controller.rb
+++ b/test/controllers/test_categories_controller.rb
@@ -117,4 +117,34 @@ def test_delete_category
     get "/categories/#{acronym}"
     assert last_response.status == 404
   end
-end
\ No newline at end of file
+
+  def test_parent_category
+    parent_category1 = LinkedData::Models::Category.new(
+      acronym: "PARENT1",
+      name: "Parent Category 1",
+      description: "Description for Parent Category 1."
+    )
+    parent_category1.save
+
+    parent_category2 = LinkedData::Models::Category.new(
+      acronym: "PARENT2",
+      name: "Parent Category 2",
+      description: "Description for Parent Category 2."
+    )
+    parent_category2.save
+
+    category_instance = LinkedData::Models::Category.new(
+      acronym: "CAT123",
+      name: "Sample Category",
+      description: "This is a sample category.",
+      parentCategory: [parent_category1, parent_category2]
+    )
+    category_instance.save
+
+    get '/categories/CAT123'
+    fetched_category = MultiJson.load(last_response.body)
+
+    assert_equal fetched_category["parentCategory"].first , parent_category1.id.to_s
+    assert_equal fetched_category["parentCategory"].last , parent_category2.id.to_s
+  end
+end