diff --git a/apps/course/serializers/admin.py b/apps/course/serializers/admin.py
index b7181cb..1a3c7f3 100644
--- a/apps/course/serializers/admin.py
+++ b/apps/course/serializers/admin.py
@@ -123,8 +123,8 @@ class AdminCourseCategorySerializer(serializers.ModelSerializer):
 class AdminCourseListSerializer(serializers.ModelSerializer):
     category_name = serializers.SerializerMethodField()
     professor_name = serializers.SerializerMethodField(read_only=True)
-    professors = serializers.PrimaryKeyRelatedField(queryset=ProfessorUser.objects.all(), many=True, required=False)
-    professor = serializers.PrimaryKeyRelatedField(queryset=ProfessorUser.objects.all(), required=False, allow_null=True, write_only=True)
+    professors = serializers.PrimaryKeyRelatedField(queryset=ProfessorUser.objects.filter(is_active=True), many=True, required=False)
+    professor = serializers.PrimaryKeyRelatedField(queryset=ProfessorUser.objects.filter(is_active=True), required=False, allow_null=True, write_only=True)
     participant_count = serializers.SerializerMethodField()
     thumbnail = serializers.SerializerMethodField()
 
@@ -190,8 +190,8 @@ class AdminCourseDetailSerializer(serializers.ModelSerializer):
     slug = serializers.JSONField(required=False, allow_null=True)
     category_name = serializers.SerializerMethodField()
     professor_name = serializers.SerializerMethodField(read_only=True)
-    professors = serializers.PrimaryKeyRelatedField(queryset=ProfessorUser.objects.all(), many=True, required=False)
-    professor = serializers.PrimaryKeyRelatedField(queryset=ProfessorUser.objects.all(), required=False, allow_null=True, write_only=True)
+    professors = serializers.PrimaryKeyRelatedField(queryset=ProfessorUser.objects.filter(is_active=True), many=True, required=False)
+    professor = serializers.PrimaryKeyRelatedField(queryset=ProfessorUser.objects.filter(is_active=True), required=False, allow_null=True, write_only=True)
     thumbnail = FileFieldSerializer(required=False, allow_null=True)
     video_file = FileFieldSerializer(required=False, allow_null=True)
     participant_count = serializers.SerializerMethodField()
diff --git a/apps/course/views/professor.py b/apps/course/views/professor.py
index 14a8cce..895fb94 100644
--- a/apps/course/views/professor.py
+++ b/apps/course/views/professor.py
@@ -63,7 +63,7 @@ class ProfessorListAPIView(ListAPIView):
 
     def get_queryset(self):
         return (
-            UserModel.objects.filter(user_type=UserModel.UserType.PROFESSOR)
+            UserModel.objects.filter(user_type=UserModel.UserType.PROFESSOR, is_active=True)
             .annotate(
                 course_count=Count('courses', distinct=True),
                 lesson_count=Count('courses__lessons', filter=Q(courses__lessons__is_active=True), distinct=True),
@@ -132,7 +132,7 @@ class ProfessorDetailAPIView(RetrieveAPIView):
 
 
     def get_queryset(self):
-        return UserModel.objects.filter(user_type=UserModel.UserType.PROFESSOR).annotate(
+        return UserModel.objects.filter(user_type=UserModel.UserType.PROFESSOR, is_active=True).annotate(
             course_count=Count('courses', distinct=True),
             lesson_count=Count('courses__lessons', filter=Q(courses__lessons__is_active=True), distinct=True),
         )
@@ -197,7 +197,7 @@ class ProfessorCourseListAPIView(ListAPIView):
 
     def get_queryset(self):
         slug = self.kwargs.get('slug')
-        professor = get_object_or_404(UserModel.objects.filter(user_type=UserModel.UserType.PROFESSOR, slug=slug))
+        professor = get_object_or_404(UserModel.objects.filter(user_type=UserModel.UserType.PROFESSOR, is_active=True, slug=slug))
         return Course.objects.select_related('category').prefetch_related(
             'professors',
             'lessons__lesson',