diff --git a/backend/apps/quizzes/serializers.py b/backend/apps/quizzes/serializers.py
index 1ce477a..8228589 100644
--- a/backend/apps/quizzes/serializers.py
+++ b/backend/apps/quizzes/serializers.py
@@ -11,8 +11,8 @@
 class QuizSerializer(serializers.ModelSerializer):
     """Serializer for representing `Quiz`."""
     numberQuestions = serializers.IntegerField()
-    questions = QuestionSerializer(many=True, read_only=True)
-    # questions = serializers.SerializerMethodField()
+    # questions = QuestionSerializer(many=True, read_only=True)
+    questions = serializers.SerializerMethodField()
 
     class Meta:
         model = Quiz
@@ -23,25 +23,25 @@ class Meta:
             "numberQuestions",
         )
 
-    # def get_questions(self, instance):
-    #     """Get shuffled list of questions."""
-    #     # The followings don't work:
-    #     # https://stackoverflow.com/a/47618345
-    #     # https://stackoverflow.com/a/2118712
-    #     # Only these methods work:
-    #     # https://stackoverflow.com/a/12073893
-    #     # https://stackoverflow.com/a/33512488
-    #     questions = instance.questions.all()
-    #     questions = sorted(questions, key=lambda x: random.random())
-    #     return [
-    #         QuestionSerializer(
-    #             quest,
-    #             # many=True,
-    #             read_only=True,
-    #             context=self.context,
-    #         ).data
-    #         for quest in questions
-    #     ]
+    def get_questions(self, instance):
+        """Get shuffled list of questions."""
+        # The followings don't work:
+        # https://stackoverflow.com/a/47618345
+        # https://stackoverflow.com/a/2118712
+        # Only these methods work:
+        # https://stackoverflow.com/a/12073893
+        # https://stackoverflow.com/a/33512488
+        questions = instance.questions.all()
+        questions = sorted(questions, key=lambda x: random.random())
+        return [
+            QuestionSerializer(
+                quest,
+                # many=True,
+                read_only=True,
+                context=self.context,
+            ).data
+            for quest in questions
+        ]
 
 
 class ResultSerializer(serializers.ModelSerializer):
diff --git a/backend/apps/users/views.py b/backend/apps/users/views.py
index f72e170..d0f8055 100644
--- a/backend/apps/users/views.py
+++ b/backend/apps/users/views.py
@@ -1,3 +1,4 @@
+from django.conf import settings
 from django.contrib.auth.hashers import make_password
 from django.utils import timezone
 from rest_framework import mixins
@@ -60,7 +61,8 @@ def post(self, request):
 
             avatar = ""
             if user.avatar and user.avatar.url:
-                avatar = "http://13.229.40.64:8888" + user.avatar.url
+                avatar = settings.DOMAIN_URL + user.avatar.url
+
                 # full_domain = 'http://' + request.META['HTTP_HOST']
                 # if request.META["SERVER_PORT"] not in full_domain:
                 #     full_domain += ':' + request.META["SERVER_PORT"]
diff --git a/frontend/trigger.txt b/frontend/trigger.txt
index 5c33b15..b7dab10 100644
--- a/frontend/trigger.txt
+++ b/frontend/trigger.txt
@@ -1 +1 @@
-trigger
+trigger 1