diff --git a/django/db/models/base.py b/django/db/models/base.py
index 5937423fd85fc..64d54380dad6c 100644
--- a/django/db/models/base.py
+++ b/django/db/models/base.py
@@ -1061,7 +1061,7 @@ def _save_table(
             )
             if results:
                 for value, field in zip(results[0], returning_fields):
-                    setattr(self, field.attname, field.to_python(value))
+                    setattr(self, field.attname, value)
         return updated
 
     def _do_update(self, base_qs, using, pk_val, values, update_fields, forced_update):