diff --git a/ss/storage.py b/ss/storage.py
index d35a171..bf324b9 100644
--- a/ss/storage.py
+++ b/ss/storage.py
@@ -53,7 +53,11 @@ class StorageManager:
         try:
             with open(self.subscriptions_file, 'w', encoding='utf-8') as f:
                 # Convert Pydantic model to dict for YAML serialization
-                data = subscriptions.dict()
+                if hasattr(subscriptions, 'model_dump'):
+                    data = subscriptions.model_dump(mode='json')
+                else:
+                    # Fallback for Pydantic v1
+                    data = subscriptions.dict()
                 yaml.dump(data, f, default_flow_style=False, allow_unicode=True)
             return True
         except (yaml.YAMLError, IOError, ValueError) as e: