diff --git a/backend/metagenedb/api/catalog/views/gene.py b/backend/metagenedb/api/catalog/views/gene.py
index fe811b97cdfe7de7cd336e6c53ebb07cb98d3d7a..db94f34a416893072984c60f1fdc476caac10cd4 100644
--- a/backend/metagenedb/api/catalog/views/gene.py
+++ b/backend/metagenedb/api/catalog/views/gene.py
@@ -1,4 +1,5 @@
 import pandas as pd
+from django.core.exceptions import ObjectDoesNotExist
 from drf_yasg import openapi
 from drf_yasg.utils import swagger_auto_schema
 from rest_framework import status
@@ -50,6 +51,21 @@ class GeneViewSet(ModelViewSet):
     def get_permissions(self):
         return super(self.__class__, self).get_permissions()
 
+    def create(self, request, *args, **kwargs):
+        """
+        Overload create to behave like an upsert method.
+        """
+        serializer = self.get_serializer(data=request.data)
+        try:
+            gene_obj = self.queryset.get(gene_id=request.data.get('gene_id'))
+            serializer = self.get_serializer(gene_obj, data=request.data)
+        except ObjectDoesNotExist:
+            serializer = self.get_serializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        self.perform_create(serializer)
+        headers = self.get_success_headers(serializer.data)
+        return Response(serializer.data, status=status.HTTP_201_CREATED, headers=headers)
+
     def _count_windows(self, df, window_size=10000, window_col=GENE_LENGTH_COL):
         """
         Count how many line of the df belong to each windows defined by the window_size for the window_col