diff --git a/csvproject/settings.py b/csvproject/settings.py
index 557be78..7164125 100644
--- a/csvproject/settings.py
+++ b/csvproject/settings.py
@@ -83,6 +83,12 @@
 }
 
 
+
+# DEFAULT_AUTO_FIELD defined because  verification.phoneModel Auto-created primary key used 
+# when not defining a primary key type, by default 'django.db.models.AutoField'.
+DEFAULT_AUTO_FIELD = 'django.db.models.AutoField'
+
+
 # Password validation
 # https://docs.djangoproject.com/en/3.1/ref/settings/#auth-password-validators