diff --git a/portfolios/views.py b/portfolios/views.py
index 00d33ed..92cc45f 100644
--- a/portfolios/views.py
+++ b/portfolios/views.py
@@ -57,6 +57,7 @@ class PortfolioSetRepresentAPIView(APIView):
         if before_represent := Portfolio.objects.filter(owner=user, is_represent=True).first():
             before_represent.is_represent = False
         portfolio.is_represent = True
+        portfolio.save()
         return Response({"message": "change represent success"}, status=status.HTTP_200_OK)