diff --git a/core/apps/accounts/serializers/user.py b/core/apps/accounts/serializers/user.py
index 279e2a7..a0a9cb9 100644
--- a/core/apps/accounts/serializers/user.py
+++ b/core/apps/accounts/serializers/user.py
@@ -6,13 +6,14 @@ from core.apps.accounts.models import User
 class CustomUserLoginSerializer(serializers.Serializer):
     username = serializers.CharField()
     password = serializers.CharField()
-    tg_id = serializers.CharField()
+    tg_id = serializers.CharField(required=False)
 
     def validate(self, data):
         user = User.objects.filter(username=data['username']).first()
         if not user:
             raise serializers.ValidationError("User not found")
-        user.tg_id = data['tg_id']
-        user.save()
+        if data.get('tg_id'):
+            user.tg_id = data.get('tg_id')
+            user.save()
         data['user'] = user
         return data
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