diff --git a/apps/rpm/serializers.py b/apps/rpm/serializers.py
index e5b802ab..245058c8 100644
--- a/apps/rpm/serializers.py
+++ b/apps/rpm/serializers.py
@@ -240,7 +240,7 @@ class RpjmemberCreateSerializer(CustomModelSerializer):
         with transaction.atomic():
             reason = validated_data.pop('reason', '')
             if re_in:
-                ins = super().update(ins, validated_data)
+                ins = super().update(rpjm, validated_data)
             else:
                 ins = super().create(validated_data)
             for x in rcertificates: