diff --git a/src/signals/resources.py b/src/signals/resources.py
index afcba5e..0408832 100644
--- a/src/signals/resources.py
+++ b/src/signals/resources.py
@@ -370,6 +370,7 @@ class Meta:
         ]
         import_id_fields: list[str] = ["name", "source"]
         store_instance = True
+        skip_unchanged = True
 
     def before_import_row(self, row, **kwargs) -> None:
         fix_boolean_fields(row)