diff --git a/apps/inm/serializers.py b/apps/inm/serializers.py
index b4d6f957..318152b9 100644
--- a/apps/inm/serializers.py
+++ b/apps/inm/serializers.py
@@ -185,7 +185,7 @@ class MIODoSerializer(CustomModelSerializer):
         return super().create(validated_data)
 
     def update(self, instance, validated_data):
-        validated_data.pop('type')
+        validated_data.pop('type', None)
         return super().update(instance, validated_data)
 
 
@@ -212,7 +212,7 @@ class MIOSaleSerializer(CustomModelSerializer):
         return super().create(validated_data)
 
     def update(self, instance, validated_data):
-        validated_data.pop('type')
+        validated_data.pop('type', None)
         return super().update(instance, validated_data)
 
 
@@ -239,7 +239,7 @@ class MIOPurSerializer(CustomModelSerializer):
         return super().create(validated_data)
 
     def update(self, instance, validated_data):
-        validated_data.pop('type')
+        validated_data.pop('type', None)
         return super().update(instance, validated_data)
 
 
@@ -259,7 +259,7 @@ class MIOOtherSerializer(CustomModelSerializer):
         return super().create(validated_data)
 
     def update(self, instance, validated_data):
-        validated_data.pop('type')
+        validated_data.pop('type', None)
         return super().update(instance, validated_data)